1361437265880 has 160 divisors (see below), whose sum is σ = 4638626863200. Its totient is φ = 358076588544.

The previous prime is 1361437265873. The next prime is 1361437265891. The reversal of 1361437265880 is 885627341631.

1361437265880 is a `hidden beast` number, since 1 + 3 + 6 + 1 + 4 + 37 + 26 + 588 + 0 = 666.

It is a super-2 number, since 2×1361437265880² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2641540 + ... + 3114579.

It is an arithmetic number, because the mean of its divisors is an integer number (28991417895).

Almost surely, 2^{1361437265880} is an apocalyptic number.

1361437265880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1361437265880 is an abundant number, since it is smaller than the sum of its proper divisors (3277189597320).

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

1361437265880 is a wasteful number, since it uses less digits than its factorization.

1361437265880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5756215 (or 5756202 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 1361437265880 in words is "one trillion, three hundred sixty-one billion, four hundred thirty-seven million, two hundred sixty-five thousand, eight hundred eighty".