64764046746 has 64 divisors (see below), whose sum is σ = 168305280000. Its totient is φ = 18073682928.

The previous prime is 64764046709. The next prime is 64764046747.

64764046746 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 64764046692 and 64764046701.

It is not an unprimeable number, because it can be changed into a prime (64764046747) 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, 1975996 + ... + 2008503.

It is an arithmetic number, because the mean of its divisors is an integer number (2629770000).

Almost surely, 2^64764046746 is an apocalyptic number.

64764046746 is an abundant number, since it is smaller than the sum of its proper divisors (103541233254).

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

64764046746 is a wasteful number, since it uses less digits than its factorization.

64764046746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3984560 (or 3984554 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 54.

The spelling of 64764046746 in words is "sixty-four billion, seven hundred sixty-four million, forty-six thousand, seven hundred forty-six".