4749999505551 has 32 divisors (see below), whose sum is σ = 7095437888000. Its totient is φ = 3140489309760.

The previous prime is 4749999505547. The next prime is 4749999505621. The reversal of 4749999505551 is 1555059999474.

4749999505551 is a `hidden beast` number, since 47 + 499 + 9 + 95 + 0 + 5 + 5 + 5 + 1 = 666.

It is not a de Polignac number, because 4749999505551 - 2² = 4749999505547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4749999505551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4749999500551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209691 + ... + 3089331.

It is an arithmetic number, because the mean of its divisors is an integer number (221732434000).

Almost surely, 2^{4749999505551} is an apocalyptic number.

4749999505551 is a deficient number, since it is larger than the sum of its proper divisors (2345438382449).

4749999505551 is a wasteful number, since it uses less digits than its factorization.

4749999505551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2880156 (or 2880150 counting only the distinct ones).

The product of its (nonzero) digits is 459270000, while the sum is 72.

The spelling of 4749999505551 in words is "four trillion, seven hundred forty-nine billion, nine hundred ninety-nine million, five hundred five thousand, five hundred fifty-one".