1373375025540 has 72 divisors (see below), whose sum is σ = 4761033426240. Its totient is φ = 313914291264.

The previous prime is 1373375025511. The next prime is 1373375025619. The reversal of 1373375025540 is 455205733731.

1373375025540 is a `hidden beast` number, since 1 + 3 + 7 + 3 + 37 + 50 + 25 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 544988830 + ... + 544991349.

Almost surely, 2^{1373375025540} is an apocalyptic number.

1373375025540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1373375025540 is an abundant number, since it is smaller than the sum of its proper divisors (3387658400700).

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

1373375025540 is a wasteful number, since it uses less digits than its factorization.

1373375025540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089980201 (or 1089980196 counting only the distinct ones).

The product of its (nonzero) digits is 1323000, while the sum is 45.

The spelling of 1373375025540 in words is "one trillion, three hundred seventy-three billion, three hundred seventy-five million, twenty-five thousand, five hundred forty".