612407344540 has 24 divisors (see below), whose sum is σ = 1286597933712. Its totient is φ = 244859602560.

The previous prime is 612407344529. The next prime is 612407344543. The reversal of 612407344540 is 45443704216.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 612407344493 and 612407344502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612407344543) 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, 6409849 + ... + 6504688.

It is an arithmetic number, because the mean of its divisors is an integer number (53608247238).

Almost surely, 2^612407344540 is an apocalyptic number.

It is an amenable number.

612407344540 is an abundant number, since it is smaller than the sum of its proper divisors (674190589172).

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

612407344540 is a wasteful number, since it uses less digits than its factorization.

612407344540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12916917 (or 12916915 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 40.

The spelling of 612407344540 in words is "six hundred twelve billion, four hundred seven million, three hundred forty-four thousand, five hundred forty".