64255173967403 has 8 divisors (see below), whose sum is σ = 64328661004608. Its totient is φ = 64181688556104.

The previous prime is 64255173967351. The next prime is 64255173967441. The reversal of 64255173967403 is 30476937155246.

It is a happy number.

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 64255173967403 - 2¹⁸ = 64255173705259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64255173963403) 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, 90208376 + ... + 90917882.

It is an arithmetic number, because the mean of its divisors is an integer number (8041082625576).

Almost surely, 2^{64255173967403} is an apocalyptic number.

64255173967403 is a deficient number, since it is larger than the sum of its proper divisors (73487037205).

64255173967403 is a wasteful number, since it uses less digits than its factorization.

64255173967403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812953.

The product of its (nonzero) digits is 114307200, while the sum is 62.

The spelling of 64255173967403 in words is "sixty-four trillion, two hundred fifty-five billion, one hundred seventy-three million, nine hundred sixty-seven thousand, four hundred three".