1377513715345 has 8 divisors (see below), whose sum is σ = 1659875449320. Its totient is φ = 1097438311680.

The previous prime is 1377513715337. The next prime is 1377513715349. The reversal of 1377513715345 is 5435173157731.

It can be written as a sum of positive squares in 4 ways, for example, as 747574661376 + 629939053969 = 864624^2 + 793687^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1377513715345 - 2³ = 1377513715337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1377513715292 and 1377513715301.

It is not an unprimeable number, because it can be changed into a prime (1377513715349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571581250 + ... + 571583659.

It is an arithmetic number, because the mean of its divisors is an integer number (207484431165).

Almost surely, 2^{1377513715345} is an apocalyptic number.

It is an amenable number.

1377513715345 is a deficient number, since it is larger than the sum of its proper divisors (282361733975).

1377513715345 is a wasteful number, since it uses less digits than its factorization.

1377513715345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143165155.

The product of its digits is 4630500, while the sum is 52.

The spelling of 1377513715345 in words is "one trillion, three hundred seventy-seven billion, five hundred thirteen million, seven hundred fifteen thousand, three hundred forty-five".