83900470551 has 4 divisors (see below), whose sum is σ = 111867294072. Its totient is φ = 55933647032.

The previous prime is 83900470523. The next prime is 83900470561. The reversal of 83900470551 is 15507400938.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83900470551 - 2¹¹ = 83900468503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83900470501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13983411756 + ... + 13983411761.

It is an arithmetic number, because the mean of its divisors is an integer number (27966823518).

Almost surely, 2^83900470551 is an apocalyptic number.

83900470551 is a deficient number, since it is larger than the sum of its proper divisors (27966823521).

83900470551 is a wasteful number, since it uses less digits than its factorization.

83900470551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27966823520.

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 83900470551 in words is "eighty-three billion, nine hundred million, four hundred seventy thousand, five hundred fifty-one".