2139501628 has 12 divisors (see below), whose sum is σ = 4084503192. Its totient is φ = 972500720.

The previous prime is 2139501619. The next prime is 2139501649. The reversal of 2139501628 is 8261059312.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 24312475 + ... + 24312562.

It is an arithmetic number, because the mean of its divisors is an integer number (340375266).

Almost surely, 2^2139501628 is an apocalyptic number.

It is an amenable number.

2139501628 is a deficient number, since it is larger than the sum of its proper divisors (1945001564).

2139501628 is a wasteful number, since it uses less digits than its factorization.

2139501628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48625052 (or 48625050 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 2139501628 is about 46254.7470861100. The cubic root of 2139501628 is about 1288.5586987265.

The spelling of 2139501628 in words is "two billion, one hundred thirty-nine million, five hundred one thousand, six hundred twenty-eight".