64629075903963 has 32 divisors (see below), whose sum is σ = 86353573741056. Its totient is φ = 42995446760448.

The previous prime is 64629075903949. The next prime is 64629075904039. The reversal of 64629075903963 is 36930957092646.

It is a de Polignac number, because none of the positive numbers 2^k-64629075903963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64629075903463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17868141931 + ... + 17868145547.

It is an arithmetic number, because the mean of its divisors is an integer number (2698549179408).

Almost surely, 2^{64629075903963} is an apocalyptic number.

64629075903963 is a deficient number, since it is larger than the sum of its proper divisors (21724497837093).

64629075903963 is a wasteful number, since it uses less digits than its factorization.

64629075903963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9763.

The product of its (nonzero) digits is 396809280, while the sum is 69.

The spelling of 64629075903963 in words is "sixty-four trillion, six hundred twenty-nine billion, seventy-five million, nine hundred three thousand, nine hundred sixty-three".