53490794278000 has 80 divisors (see below), whose sum is σ = 136148148059040. Its totient is φ = 20270195712000.

The previous prime is 53490794277967. The next prime is 53490794278021. The reversal of 53490794278000 is 87249709435.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×53490794278000² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 703788241 + ... + 703864240.

It is an arithmetic number, because the mean of its divisors is an integer number (1701851850738).

Almost surely, 2^{53490794278000} is an apocalyptic number.

53490794278000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53490794278000 is an abundant number, since it is smaller than the sum of its proper divisors (82657353781040).

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

53490794278000 is a wasteful number, since it uses less digits than its factorization.

53490794278000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407652523 (or 1407652507 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 58.

The spelling of 53490794278000 in words is "fifty-three trillion, four hundred ninety billion, seven hundred ninety-four million, two hundred seventy-eight thousand".