20426150757 has 4 divisors (see below), whose sum is σ = 27234867680. Its totient is φ = 13617433836.

The previous prime is 20426150749. The next prime is 20426150807. The reversal of 20426150757 is 75705162402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20426150757 - 2³ = 20426150749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20426152757) 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, 3404358457 + ... + 3404358462.

It is an arithmetic number, because the mean of its divisors is an integer number (6808716920).

Almost surely, 2^20426150757 is an apocalyptic number.

It is an amenable number.

20426150757 is a deficient number, since it is larger than the sum of its proper divisors (6808716923).

20426150757 is an equidigital number, since it uses as much as digits as its factorization.

20426150757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6808716922.

The product of its (nonzero) digits is 117600, while the sum is 39.

The spelling of 20426150757 in words is "twenty billion, four hundred twenty-six million, one hundred fifty thousand, seven hundred fifty-seven".