64524157007 has 8 divisors (see below), whose sum is σ = 66682859040. Its totient is φ = 62393309440.

The previous prime is 64524156979. The next prime is 64524157037. The reversal of 64524157007 is 70075142546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64524157007 - 2²⁰ = 64523108431 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64524157037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6958907 + ... + 6968172.

It is an arithmetic number, because the mean of its divisors is an integer number (8335357380).

Almost surely, 2^64524157007 is an apocalyptic number.

64524157007 is a deficient number, since it is larger than the sum of its proper divisors (2158702033).

64524157007 is a wasteful number, since it uses less digits than its factorization.

64524157007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13927233.

The product of its (nonzero) digits is 235200, while the sum is 41.

The spelling of 64524157007 in words is "sixty-four billion, five hundred twenty-four million, one hundred fifty-seven thousand, seven".