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64369290948 = 2235364107579
BaseRepresentation
bin111011111100101101…
…010110111011000100
320011011000011210010220
4323330231112323010
52023312014302243
645323145144340
74436062642164
oct737455267304
9204130153126
1064369290948
1125331872016
121058518b0b0
1360baa2a551
143188c965a4
151a1b122783
hexefcb56ec4

64369290948 has 12 divisors (see below), whose sum is σ = 150195012240. Its totient is φ = 21456430312.

The previous prime is 64369290941. The next prime is 64369290949. The reversal of 64369290948 is 84909296346.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 64369290891 and 64369290900.

It is not an unprimeable number, because it can be changed into a prime (64369290941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2682053778 + ... + 2682053801.

It is an arithmetic number, because the mean of its divisors is an integer number (12516251020).

Almost surely, 264369290948 is an apocalyptic number.

It is an amenable number.

64369290948 is an abundant number, since it is smaller than the sum of its proper divisors (85825721292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64369290948 is a wasteful number, since it uses less digits than its factorization.

64369290948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5364107586 (or 5364107584 counting only the distinct ones).

The product of its (nonzero) digits is 20155392, while the sum is 60.

The spelling of 64369290948 in words is "sixty-four billion, three hundred sixty-nine million, two hundred ninety thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 12 5364107579 10728215158 16092322737 21456430316 32184645474 64369290948