1612257870 has 16 divisors (see below), whose sum is σ = 3869418960. Its totient is φ = 429935424.

The previous prime is 1612257851. The next prime is 1612257919. The reversal of 1612257870 is 787522161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26870935 + ... + 26870994.

It is an arithmetic number, because the mean of its divisors is an integer number (241838685).

Almost surely, 2^1612257870 is an apocalyptic number.

1612257870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1612257870 is an abundant number, since it is smaller than the sum of its proper divisors (2257161090).

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

1612257870 is a wasteful number, since it uses less digits than its factorization.

1612257870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53741939.

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 1612257870 is about 40152.9310262651. The cubic root of 1612257870 is about 1172.5863524341.

The spelling of 1612257870 in words is "one billion, six hundred twelve million, two hundred fifty-seven thousand, eight hundred seventy".