20426551377 has 8 divisors (see below), whose sum is σ = 27254875200. Its totient is φ = 13607964240.

The previous prime is 20426551351. The next prime is 20426551463. The reversal of 20426551377 is 77315562402.

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

It is not a de Polignac number, because 20426551377 - 2²⁸ = 20158115921 is a prime.

It is a super-2 number, since 2×20426551377² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20426511377) 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, 2429274 + ... + 2437667.

It is an arithmetic number, because the mean of its divisors is an integer number (3406859400).

Almost surely, 2^20426551377 is an apocalyptic number.

It is an amenable number.

20426551377 is a deficient number, since it is larger than the sum of its proper divisors (6828323823).

20426551377 is a wasteful number, since it uses less digits than its factorization.

20426551377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4868343.

The product of its (nonzero) digits is 352800, while the sum is 42.

The spelling of 20426551377 in words is "twenty billion, four hundred twenty-six million, five hundred fifty-one thousand, three hundred seventy-seven".