612853881 has 8 divisors (see below), whose sum is σ = 819717504. Its totient is φ = 407279760.

The previous prime is 612853853. The next prime is 612853889. The reversal of 612853881 is 188358216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 612853881 - 2¹⁴ = 612837497 is a prime.

It is a super-2 number, since 2×612853881² = 751179758913524322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (612853889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321265 + ... + 323166.

It is an arithmetic number, because the mean of its divisors is an integer number (102464688).

Almost surely, 2^612853881 is an apocalyptic number.

It is an amenable number.

612853881 is a deficient number, since it is larger than the sum of its proper divisors (206863623).

612853881 is a wasteful number, since it uses less digits than its factorization.

612853881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644751.

The product of its digits is 92160, while the sum is 42.

The square root of 612853881 is about 24755.8857850007. The cubic root of 612853881 is about 849.4131501733.

The spelling of 612853881 in words is "six hundred twelve million, eight hundred fifty-three thousand, eight hundred eighty-one".