64137857829 has 16 divisors (see below), whose sum is σ = 87855075840. Its totient is φ = 41590307520.

The previous prime is 64137857789. The next prime is 64137857857. The reversal of 64137857829 is 92875873146.

It is not a de Polignac number, because 64137857829 - 2¹³ = 64137849637 is a prime.

It is a super-2 number, since 2×64137857829² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64137857869) 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, 286839 + ... + 458859.

It is an arithmetic number, because the mean of its divisors is an integer number (5490942240).

Almost surely, 2^64137857829 is an apocalyptic number.

It is an amenable number.

64137857829 is a deficient number, since it is larger than the sum of its proper divisors (23717218011).

64137857829 is a wasteful number, since it uses less digits than its factorization.

64137857829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175420.

The product of its digits is 20321280, while the sum is 60.

The spelling of 64137857829 in words is "sixty-four billion, one hundred thirty-seven million, eight hundred fifty-seven thousand, eight hundred twenty-nine".