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64349510401 = 1115737260863
BaseRepresentation
bin111011111011100001…
…111001101100000001
320011002121221211100001
4323323201321230001
52023241433313101
645321201200001
74435432546021
oct737341715401
9204077854301
1064349510401
1125321691660
121057a630001
1360b68c2c97
1431863c7a81
151a19516901
hexefb879b01

64349510401 has 8 divisors (see below), whose sum is σ = 70646598144. Its totient is φ = 58126944720.

The previous prime is 64349510371. The next prime is 64349510431. The reversal of 64349510401 is 10401594346.

It is an interprime number because it is at equal distance from previous prime (64349510371) and next prime (64349510431).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64349510401 - 27 = 64349510273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64349510431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18628705 + ... + 18632158.

It is an arithmetic number, because the mean of its divisors is an integer number (8830824768).

Almost surely, 264349510401 is an apocalyptic number.

It is an amenable number.

64349510401 is a deficient number, since it is larger than the sum of its proper divisors (6297087743).

64349510401 is a wasteful number, since it uses less digits than its factorization.

64349510401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37261031.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 64349510401 in words is "sixty-four billion, three hundred forty-nine million, five hundred ten thousand, four hundred one".

Divisors: 1 11 157 1727 37260863 409869493 5849955491 64349510401