2139417973 has 32 divisors (see below), whose sum is σ = 2765537280. Its totient is φ = 1606176000.

The previous prime is 2139417971. The next prime is 2139417983. The reversal of 2139417973 is 3797149312.

It is not a de Polignac number, because 2139417973 - 2¹ = 2139417971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2139417971) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 573408 + ... + 577126.

It is an arithmetic number, because the mean of its divisors is an integer number (86423040).

Almost surely, 2^2139417973 is an apocalyptic number.

It is an amenable number.

2139417973 is a deficient number, since it is larger than the sum of its proper divisors (626119307).

2139417973 is a wasteful number, since it uses less digits than its factorization.

2139417973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4009.

The product of its digits is 285768, while the sum is 46.

The square root of 2139417973 is about 46253.8427917076. The cubic root of 2139417973 is about 1288.5419041949.

The spelling of 2139417973 in words is "two billion, one hundred thirty-nine million, four hundred seventeen thousand, nine hundred seventy-three".