215402624652 has 48 divisors (see below), whose sum is σ = 514579000320. Its totient is φ = 70092310848.

The previous prime is 215402624641. The next prime is 215402624681. The reversal of 215402624652 is 256426204512.

It is a super-2 number, since 2×215402624652² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 215402624652.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 826174 + ... + 1055162.

It is an arithmetic number, because the mean of its divisors is an integer number (10720395840).

Almost surely, 2^215402624652 is an apocalyptic number.

It is an amenable number.

215402624652 is an abundant number, since it is smaller than the sum of its proper divisors (299176375668).

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

215402624652 is a wasteful number, since it uses less digits than its factorization.

215402624652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230862 (or 230860 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

The spelling of 215402624652 in words is "two hundred fifteen billion, four hundred two million, six hundred twenty-four thousand, six hundred fifty-two".