620860785542 has 4 divisors (see below), whose sum is σ = 931291178316. Its totient is φ = 310430392770.

The previous prime is 620860785521. The next prime is 620860785593. The reversal of 620860785542 is 245587068026.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155215196384 + ... + 155215196387.

It is an arithmetic number, because the mean of its divisors is an integer number (232822794579).

Almost surely, 2^620860785542 is an apocalyptic number.

620860785542 is a deficient number, since it is larger than the sum of its proper divisors (310430392774).

620860785542 is a wasteful number, since it uses less digits than its factorization.

620860785542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310430392773.

The product of its (nonzero) digits is 6451200, while the sum is 53.

The spelling of 620860785542 in words is "six hundred twenty billion, eight hundred sixty million, seven hundred eighty-five thousand, five hundred forty-two".