20678052570 has 32 divisors (see below), whose sum is σ = 56716944768. Its totient is φ = 4726411968.

The previous prime is 20678052559. The next prime is 20678052581. The reversal of 20678052570 is 7525087602.

It is an interprime number because it is at equal distance from previous prime (20678052559) and next prime (20678052581).

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 49233249 + ... + 49233668.

It is an arithmetic number, because the mean of its divisors is an integer number (1772404524).

Almost surely, 2^20678052570 is an apocalyptic number.

20678052570 is an abundant number, since it is smaller than the sum of its proper divisors (36038892198).

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

20678052570 is a wasteful number, since it uses less digits than its factorization.

20678052570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98466934.

The product of its (nonzero) digits is 235200, while the sum is 42.

The spelling of 20678052570 in words is "twenty billion, six hundred seventy-eight million, fifty-two thousand, five hundred seventy".