20387045352 has 32 divisors (see below), whose sum is σ = 50971262400. Its totient is φ = 6795195264.

The previous prime is 20387045339. The next prime is 20387045363. The reversal of 20387045352 is 25354078302.

It is a self number, because there is not a number n which added to its sum of digits gives 20387045352.

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, 502149 + ... + 541227.

It is an arithmetic number, because the mean of its divisors is an integer number (1592851950).

Almost surely, 2^20387045352 is an apocalyptic number.

It is an amenable number.

20387045352 is an abundant number, since it is smaller than the sum of its proper divisors (30584217048).

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

20387045352 is a wasteful number, since it uses less digits than its factorization.

20387045352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60825 (or 60821 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 39.

The spelling of 20387045352 in words is "twenty billion, three hundred eighty-seven million, forty-five thousand, three hundred fifty-two".