612407344542 has 32 divisors (see below), whose sum is σ = 1401057395712. Its totient is φ = 174814879584.

The previous prime is 612407344529. The next prime is 612407344543. The reversal of 612407344542 is 245443704216.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 612407344494 and 612407344503.

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 15 ways as a sum of consecutive naturals, for example, 6563433 + ... + 6656084.

It is an arithmetic number, because the mean of its divisors is an integer number (43783043616).

Almost surely, 2^612407344542 is an apocalyptic number.

612407344542 is an abundant number, since it is smaller than the sum of its proper divisors (788650051170).

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

612407344542 is a wasteful number, since it uses less digits than its factorization.

612407344542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13220632.

The product of its (nonzero) digits is 645120, while the sum is 42.

The spelling of 612407344542 in words is "six hundred twelve billion, four hundred seven million, three hundred forty-four thousand, five hundred forty-two".