20476765371 has 16 divisors (see below), whose sum is σ = 27526348800. Its totient is φ = 13539250368.

The previous prime is 20476765343. The next prime is 20476765399. The reversal of 20476765371 is 17356767402.

It is an interprime number because it is at equal distance from previous prime (20476765343) and next prime (20476765399).

It is not a de Polignac number, because 20476765371 - 2⁶ = 20476765307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20476765371.

It is not an unprimeable number, because it can be changed into a prime (20476765571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1490110 + ... + 1503788.

It is an arithmetic number, because the mean of its divisors is an integer number (1720396800).

Almost surely, 2^20476765371 is an apocalyptic number.

20476765371 is a deficient number, since it is larger than the sum of its proper divisors (7049583429).

20476765371 is a wasteful number, since it uses less digits than its factorization.

20476765371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17738.

The product of its (nonzero) digits is 1481760, while the sum is 48.

The spelling of 20476765371 in words is "twenty billion, four hundred seventy-six million, seven hundred sixty-five thousand, three hundred seventy-one".