39428726885 has 16 divisors (see below), whose sum is σ = 47491944192. Its totient is φ = 31424827200.

The previous prime is 39428726873. The next prime is 39428726921. The reversal of 39428726885 is 58862782493.

It is not a de Polignac number, because 39428726885 - 2¹² = 39428722789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2126555 + ... + 2145015.

It is an arithmetic number, because the mean of its divisors is an integer number (2968246512).

Almost surely, 2^39428726885 is an apocalyptic number.

It is an amenable number.

39428726885 is a deficient number, since it is larger than the sum of its proper divisors (8063217307).

39428726885 is a wasteful number, since it uses less digits than its factorization.

39428726885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20044.

The product of its digits is 46448640, while the sum is 62.

The spelling of 39428726885 in words is "thirty-nine billion, four hundred twenty-eight million, seven hundred twenty-six thousand, eight hundred eighty-five".