2137420785 has 64 divisors (see below), whose sum is σ = 3633696000. Its totient is φ = 1071221760.

The previous prime is 2137420771. The next prime is 2137420787. The reversal of 2137420785 is 5870247312.

It is not a de Polignac number, because 2137420785 - 2⁶ = 2137420721 is a prime.

It is a super-2 number, since 2×2137420785² = 9137135224300032450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2137420787) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2891946 + ... + 2892684.

It is an arithmetic number, because the mean of its divisors is an integer number (56776500).

Almost surely, 2^2137420785 is an apocalyptic number.

It is an amenable number.

2137420785 is a deficient number, since it is larger than the sum of its proper divisors (1496275215).

2137420785 is a wasteful number, since it uses less digits than its factorization.

2137420785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 2137420785 is about 46232.2483230050. The cubic root of 2137420785 is about 1288.1408197772.

The spelling of 2137420785 in words is "two billion, one hundred thirty-seven million, four hundred twenty thousand, seven hundred eighty-five".