620743656532 has 12 divisors (see below), whose sum is σ = 1086322999860. Its totient is φ = 310365656576.

The previous prime is 620743656509. The next prime is 620743656581. The reversal of 620743656532 is 235656347026.

It can be written as a sum of positive squares in 2 ways, for example, as 345880429456 + 274863227076 = 588116^2 + 524274^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1312807 + ... + 1721902.

It is an arithmetic number, because the mean of its divisors is an integer number (90526916655).

Almost surely, 2^620743656532 is an apocalyptic number.

It is an amenable number.

620743656532 is a deficient number, since it is larger than the sum of its proper divisors (465579343328).

620743656532 is a wasteful number, since it uses less digits than its factorization.

620743656532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3085850 (or 3085848 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 49.

The spelling of 620743656532 in words is "six hundred twenty billion, seven hundred forty-three million, six hundred fifty-six thousand, five hundred thirty-two".