612977860687 has 8 divisors (see below), whose sum is σ = 632774790272. Its totient is φ = 593182396800.

The previous prime is 612977860679. The next prime is 612977860699. The reversal of 612977860687 is 786068779216.

It is a happy number.

612977860687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 612977860687 - 2³ = 612977860679 is a prime.

It is a super-2 number, since 2×612977860687² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612977860387) 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, 517387 + ... + 1222147.

It is an arithmetic number, because the mean of its divisors is an integer number (79096848784).

Almost surely, 2^612977860687 is an apocalyptic number.

612977860687 is a deficient number, since it is larger than the sum of its proper divisors (19796929585).

612977860687 is a wasteful number, since it uses less digits than its factorization.

612977860687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732849.

The product of its (nonzero) digits is 85349376, while the sum is 67.

The spelling of 612977860687 in words is "six hundred twelve billion, nine hundred seventy-seven million, eight hundred sixty thousand, six hundred eighty-seven".