2657263538780 has 48 divisors (see below), whose sum is σ = 5617589053440. Its totient is φ = 1055794824000.

The previous prime is 2657263538749. The next prime is 2657263538807. The reversal of 2657263538780 is 878353627562.

It is a super-2 number, since 2×2657263538780² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81798581 + ... + 81831059.

It is an arithmetic number, because the mean of its divisors is an integer number (117033105280).

Almost surely, 2^{2657263538780} is an apocalyptic number.

2657263538780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2657263538780 is an abundant number, since it is smaller than the sum of its proper divisors (2960325514660).

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

2657263538780 is a wasteful number, since it uses less digits than its factorization.

2657263538780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59730 (or 59728 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 62.

The spelling of 2657263538780 in words is "two trillion, six hundred fifty-seven billion, two hundred sixty-three million, five hundred thirty-eight thousand, seven hundred eighty".