620412506431 has 2 divisors, whose sum is σ = 620412506432. Its totient is φ = 620412506430.

The previous prime is 620412506393. The next prime is 620412506459. The reversal of 620412506431 is 134605214026.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 620412506431 - 2³³ = 611822571839 is a prime.

It is a super-2 number, since 2×620412506431² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620412206431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310206253215 + 310206253216.

It is an arithmetic number, because the mean of its divisors is an integer number (310206253216).

Almost surely, 2^620412506431 is an apocalyptic number.

620412506431 is a deficient number, since it is larger than the sum of its proper divisors (1).

620412506431 is an equidigital number, since it uses as much as digits as its factorization.

620412506431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 620412506431 in words is "six hundred twenty billion, four hundred twelve million, five hundred six thousand, four hundred thirty-one".