630540812355 has 128 divisors (see below), whose sum is σ = 1129896345600. Its totient is φ = 298962316800.

The previous prime is 630540812351. The next prime is 630540812399. The reversal of 630540812355 is 553218045036.

It is a Cunningham number, because it is equal to 794066²-1.

It is not a de Polignac number, because 630540812355 - 2² = 630540812351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (630540812351) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 45254740 + ... + 45268670.

It is an arithmetic number, because the mean of its divisors is an integer number (8827315200).

Almost surely, 2^630540812355 is an apocalyptic number.

630540812355 is a deficient number, since it is larger than the sum of its proper divisors (499355533245).

630540812355 is a wasteful number, since it uses less digits than its factorization.

630540812355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14145.

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 630540812355 in words is "six hundred thirty billion, five hundred forty million, eight hundred twelve thousand, three hundred fifty-five".