1371947770745 has 16 divisors (see below), whose sum is σ = 1651779138240. Its totient is φ = 1093935146304.

The previous prime is 1371947770729. The next prime is 1371947770759. The reversal of 1371947770745 is 5470777491731.

It is a cyclic number.

It is not a de Polignac number, because 1371947770745 - 2⁴ = 1371947770729 is a prime.

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, 1990262 + ... + 2589408.

It is an arithmetic number, because the mean of its divisors is an integer number (103236196140).

Almost surely, 2^{1371947770745} is an apocalyptic number.

It is an amenable number.

1371947770745 is a deficient number, since it is larger than the sum of its proper divisors (279831367495).

1371947770745 is a wasteful number, since it uses less digits than its factorization.

1371947770745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600664.

The product of its (nonzero) digits is 36303120, while the sum is 62.

The spelling of 1371947770745 in words is "one trillion, three hundred seventy-one billion, nine hundred forty-seven million, seven hundred seventy thousand, seven hundred forty-five".