1376377640265 has 16 divisors (see below), whose sum is σ = 2318109710400. Its totient is φ = 695432912832.

The previous prime is 1376377640237. The next prime is 1376377640269. The reversal of 1376377640265 is 5620467736731.

It is a happy number.

It is not a de Polignac number, because 1376377640265 - 2⁶ = 1376377640201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (1376377640269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2414697330 + ... + 2414697899.

It is an arithmetic number, because the mean of its divisors is an integer number (144881856900).

Almost surely, 2^{1376377640265} is an apocalyptic number.

1376377640265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1376377640265 is a deficient number, since it is larger than the sum of its proper divisors (941732070135).

1376377640265 is a wasteful number, since it uses less digits than its factorization.

1376377640265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4829395256.

The product of its (nonzero) digits is 26671680, while the sum is 57.

The spelling of 1376377640265 in words is "one trillion, three hundred seventy-six billion, three hundred seventy-seven million, six hundred forty thousand, two hundred sixty-five".