20626344761 has 8 divisors (see below), whose sum is σ = 22538181504. Its totient is φ = 18720627120.

The previous prime is 20626344751. The next prime is 20626344769. The reversal of 20626344761 is 16744362602.

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 20626344761 - 2¹⁴ = 20626328377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20626344769) 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, 1522721 + ... + 1536206.

It is an arithmetic number, because the mean of its divisors is an integer number (2817272688).

Almost surely, 2^20626344761 is an apocalyptic number.

It is an amenable number.

20626344761 is a deficient number, since it is larger than the sum of its proper divisors (1911836743).

20626344761 is a wasteful number, since it uses less digits than its factorization.

20626344761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3059551.

The product of its (nonzero) digits is 290304, while the sum is 41.

The spelling of 20626344761 in words is "twenty billion, six hundred twenty-six million, three hundred forty-four thousand, seven hundred sixty-one".