64246896477 has 6 divisors (see below), whose sum is σ = 92801072702. Its totient is φ = 42831264312.

The previous prime is 64246896473. The next prime is 64246896509. The reversal of 64246896477 is 77469864246.

64246896477 is a `hidden beast` number, since 6 + 42 + 46 + 89 + 6 + 477 = 666.

It can be written as a sum of positive squares in only one way, i.e., 62807376996 + 1439519481 = 250614^2 + 37941^2 .

It is not a de Polignac number, because 64246896477 - 2² = 64246896473 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64246896473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3569272018 + ... + 3569272035.

Almost surely, 2^64246896477 is an apocalyptic number.

It is an amenable number.

64246896477 is a deficient number, since it is larger than the sum of its proper divisors (28554176225).

64246896477 is a wasteful number, since it uses less digits than its factorization.

64246896477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7138544059 (or 7138544056 counting only the distinct ones).

The product of its digits is 97542144, while the sum is 63.

The spelling of 64246896477 in words is "sixty-four billion, two hundred forty-six million, eight hundred ninety-six thousand, four hundred seventy-seven".