20078880974 has 8 divisors (see below), whose sum is σ = 31156884360. Its totient is φ = 9693252856.

The previous prime is 20078880961. The next prime is 20078880977. The reversal of 20078880974 is 47908887002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20078880974² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20078880977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173093744 + ... + 173093859.

It is an arithmetic number, because the mean of its divisors is an integer number (3894610545).

Almost surely, 2^20078880974 is an apocalyptic number.

20078880974 is a deficient number, since it is larger than the sum of its proper divisors (11078003386).

20078880974 is a wasteful number, since it uses less digits than its factorization.

20078880974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346187634.

The product of its (nonzero) digits is 1806336, while the sum is 53.

The spelling of 20078880974 in words is "twenty billion, seventy-eight million, eight hundred eighty thousand, nine hundred seventy-four".