64464452770 has 16 divisors (see below), whose sum is σ = 116775100728. Its totient is φ = 25621539840.

The previous prime is 64464452713. The next prime is 64464452827. The reversal of 64464452770 is 7725446446.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (64464452713) and next prime (64464452827).

It can be written as a sum of positive squares in 4 ways, for example, as 43352653369 + 21111799401 = 208213^2 + 145299^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20528511 + ... + 20531650.

Almost surely, 2^64464452770 is an apocalyptic number.

64464452770 is a deficient number, since it is larger than the sum of its proper divisors (52310647958).

64464452770 is a wasteful number, since it uses less digits than its factorization.

64464452770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41060325.

The product of its (nonzero) digits is 4515840, while the sum is 49.

The spelling of 64464452770 in words is "sixty-four billion, four hundred sixty-four million, four hundred fifty-two thousand, seven hundred seventy".