612051870 has 16 divisors (see below), whose sum is σ = 1468924560. Its totient is φ = 163213824.

The previous prime is 612051863. The next prime is 612051887. The reversal of 612051870 is 78150216.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 20401729 = 612051870 / (6 + 1 + 2 + 0 + 5 + 1 + 8 + 7 + 0).

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 7 ways as a sum of consecutive naturals, for example, 10200835 + ... + 10200894.

It is an arithmetic number, because the mean of its divisors is an integer number (91807785).

Almost surely, 2^612051870 is an apocalyptic number.

612051870 is an abundant number, since it is smaller than the sum of its proper divisors (856872690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

612051870 is a wasteful number, since it uses less digits than its factorization.

612051870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20401739.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 612051870 is about 24739.6820917327. The cubic root of 612051870 is about 849.0424603591.

The spelling of 612051870 in words is "six hundred twelve million, fifty-one thousand, eight hundred seventy".