620405254542356 has 24 divisors (see below), whose sum is σ = 1094274115501056. Its totient is φ = 307755578813760.

The previous prime is 620405254542313. The next prime is 620405254542401. The reversal of 620405254542356 is 653245452504026.

It is a junction number, because it is equal to n+sod(n) for n = 620405254542298 and 620405254542307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25903400 + ... + 43724096.

It is an arithmetic number, because the mean of its divisors is an integer number (45594754812544).

Almost surely, 2^{620405254542356} is an apocalyptic number.

It is an amenable number.

620405254542356 is a deficient number, since it is larger than the sum of its proper divisors (473868860958700).

620405254542356 is a wasteful number, since it uses less digits than its factorization.

620405254542356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17889359 (or 17889357 counting only the distinct ones).

The product of its (nonzero) digits is 34560000, while the sum is 53.

The spelling of 620405254542356 in words is "six hundred twenty trillion, four hundred five billion, two hundred fifty-four million, five hundred forty-two thousand, three hundred fifty-six".