623857791552 has 112 divisors (see below), whose sum is σ = 1738027146240. Its totient is φ = 196947804672.

The previous prime is 623857791539. The next prime is 623857791569. The reversal of 623857791552 is 255197758326.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12842253 + ... + 12890739.

It is an arithmetic number, because the mean of its divisors is an integer number (15518099520).

Almost surely, 2^623857791552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 623857791552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (869013573120).

623857791552 is an abundant number, since it is smaller than the sum of its proper divisors (1114169354688).

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

623857791552 is a wasteful number, since it uses less digits than its factorization.

623857791552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52048 (or 52038 counting only the distinct ones).

The product of its digits is 31752000, while the sum is 60.

The spelling of 623857791552 in words is "six hundred twenty-three billion, eight hundred fifty-seven million, seven hundred ninety-one thousand, five hundred fifty-two".