64701072039 has 16 divisors (see below), whose sum is σ = 90872006400. Its totient is φ = 40835267136.

The previous prime is 64701072013. The next prime is 64701072061. The reversal of 64701072039 is 93027010746.

It is not a de Polignac number, because 64701072039 - 2⁹ = 64701071527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64701071988 and 64701072006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64701022039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314379 + ... + 477740.

It is an arithmetic number, because the mean of its divisors is an integer number (5679500400).

Almost surely, 2^64701072039 is an apocalyptic number.

64701072039 is a deficient number, since it is larger than the sum of its proper divisors (26170934361).

64701072039 is a wasteful number, since it uses less digits than its factorization.

64701072039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793574.

The product of its (nonzero) digits is 63504, while the sum is 39.

The spelling of 64701072039 in words is "sixty-four billion, seven hundred one million, seventy-two thousand, thirty-nine".