652154721428 has 24 divisors (see below), whose sum is σ = 1305831438912. Its totient is φ = 279168738624.

The previous prime is 652154721391. The next prime is 652154721443. The reversal of 652154721428 is 824127451256.

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, 13564826 + ... + 13612817.

It is an arithmetic number, because the mean of its divisors is an integer number (54409643288).

Almost surely, 2^652154721428 is an apocalyptic number.

It is an amenable number.

652154721428 is an abundant number, since it is smaller than the sum of its proper divisors (653676717484).

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

652154721428 is a wasteful number, since it uses less digits than its factorization.

652154721428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27178511 (or 27178509 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 47.

The spelling of 652154721428 in words is "six hundred fifty-two billion, one hundred fifty-four million, seven hundred twenty-one thousand, four hundred twenty-eight".