64713058949 has 80 divisors (see below), whose sum is σ = 86580480000. Its totient is φ = 47247092640.

The previous prime is 64713058919. The next prime is 64713058979. The reversal of 64713058949 is 94985031746.

It is an interprime number because it is at equal distance from previous prime (64713058919) and next prime (64713058979).

It is a de Polignac number, because none of the positive numbers 2^k-64713058949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64713058894 and 64713058903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64713058919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 325191152 + ... + 325191350.

It is an arithmetic number, because the mean of its divisors is an integer number (1082256000).

Almost surely, 2^64713058949 is an apocalyptic number.

It is an amenable number.

64713058949 is a deficient number, since it is larger than the sum of its proper divisors (21867421051).

64713058949 is a wasteful number, since it uses less digits than its factorization.

64713058949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 64713058949 in words is "sixty-four billion, seven hundred thirteen million, fifty-eight thousand, nine hundred forty-nine".