612881870 has 16 divisors (see below), whose sum is σ = 1104334128. Its totient is φ = 244897920.

The previous prime is 612881861. The next prime is 612881887. The reversal of 612881870 is 78188216.

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, 21596 + ... + 41135.

It is an arithmetic number, because the mean of its divisors is an integer number (69020883).

Almost surely, 2^612881870 is an apocalyptic number.

612881870 is a deficient number, since it is larger than the sum of its proper divisors (491452258).

612881870 is a wasteful number, since it uses less digits than its factorization.

612881870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63715.

The product of its (nonzero) digits is 43008, while the sum is 41.

The square root of 612881870 is about 24756.4510784563. The cubic root of 612881870 is about 849.4260808590.

The spelling of 612881870 in words is "six hundred twelve million, eight hundred eighty-one thousand, eight hundred seventy".