551279940435 has 192 divisors, whose sum is σ = 1142495477760. Its totient is φ = 240610590720.

The previous prime is 551279940401. The next prime is 551279940437. The reversal of 551279940435 is 534049972155.

551279940435 is a `hidden beast` number, since 5 + 51 + 2 + 79 + 94 + 0 + 435 = 666.

It is not a de Polignac number, because 551279940435 - 2⁷ = 551279940307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551279940437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 387406134 + ... + 387407556.

It is an arithmetic number, because the mean of its divisors is an integer number (5950497280).

Almost surely, 2^551279940435 is an apocalyptic number.

551279940435 is an abundant number, since it is smaller than the sum of its proper divisors (591215537325).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551279940435 is a wasteful number, since it uses less digits than its factorization.

551279940435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978 (or 1975 counting only the distinct ones).

The product of its (nonzero) digits is 6804000, while the sum is 54.

The spelling of 551279940435 in words is "five hundred fifty-one billion, two hundred seventy-nine million, nine hundred forty thousand, four hundred thirty-five".