215457754512 has 160 divisors (see below), whose sum is σ = 747322168320. Its totient is φ = 51658191360.

The previous prime is 215457754471. The next prime is 215457754607.

215457754512 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2194062 + ... + 2290157.

It is an arithmetic number, because the mean of its divisors is an integer number (4670763552).

Almost surely, 2^215457754512 is an apocalyptic number.

215457754512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

215457754512 is an abundant number, since it is smaller than the sum of its proper divisors (531864413808).

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

215457754512 is a wasteful number, since it uses less digits than its factorization.

215457754512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4484261 (or 4484255 counting only the distinct ones).

The product of its digits is 1960000, while the sum is 48.

It can be divided in two parts, 215457 and 754512, that added together give a palindrome (969969).

The spelling of 215457754512 in words is "two hundred fifteen billion, four hundred fifty-seven million, seven hundred fifty-four thousand, five hundred twelve".