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64764790364 = 2232594968149
BaseRepresentation
bin111100010100010010…
…000100011001011100
320012011120101020100102
4330110102010121130
52030114241242424
645430314120232
74451634430541
oct742422043134
9205146336312
1064764790364
112551504363a
1210675720078
136151954481
1431c5608bc8
151a40be77ae
hexf1448465c

64764790364 has 12 divisors (see below), whose sum is σ = 113373183000. Its totient is φ = 32372452368.

The previous prime is 64764790339. The next prime is 64764790369. The reversal of 64764790364 is 46309746746.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64764790369) 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, 2471039 + ... + 2497110.

It is an arithmetic number, because the mean of its divisors is an integer number (9447765250).

Almost surely, 264764790364 is an apocalyptic number.

It is an amenable number.

64764790364 is a deficient number, since it is larger than the sum of its proper divisors (48608392636).

64764790364 is a wasteful number, since it uses less digits than its factorization.

64764790364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4971412 (or 4971410 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 56.

The spelling of 64764790364 in words is "sixty-four billion, seven hundred sixty-four million, seven hundred ninety thousand, three hundred sixty-four".

Divisors: 1 2 4 3259 6518 13036 4968149 9936298 19872596 16191197591 32382395182 64764790364