20870625377 has 8 divisors (see below), whose sum is σ = 23853580416. Its totient is φ = 17888029632.

The previous prime is 20870625371. The next prime is 20870625379. The reversal of 20870625377 is 77352607802.

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

It is a cyclic number.

It is not a de Polignac number, because 20870625377 - 2⁴ = 20870625361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20870625371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48953 + ... + 210089.

It is an arithmetic number, because the mean of its divisors is an integer number (2981697552).

Almost surely, 2^20870625377 is an apocalyptic number.

It is an amenable number.

20870625377 is a deficient number, since it is larger than the sum of its proper divisors (2982955039).

20870625377 is a wasteful number, since it uses less digits than its factorization.

20870625377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179647.

The product of its (nonzero) digits is 987840, while the sum is 47.

The spelling of 20870625377 in words is "twenty billion, eight hundred seventy million, six hundred twenty-five thousand, three hundred seventy-seven".