1376870649 has 48 divisors (see below), whose sum is σ = 2357994240. Its totient is φ = 706571040.

The previous prime is 1376870641. The next prime is 1376870713. The reversal of 1376870649 is 9460786731.

It is not a de Polignac number, because 1376870649 - 2³ = 1376870641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1376870641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 129082 + ... + 139340.

It is an arithmetic number, because the mean of its divisors is an integer number (49124880).

Almost surely, 2^1376870649 is an apocalyptic number.

It is an amenable number.

1376870649 is a deficient number, since it is larger than the sum of its proper divisors (981123591).

1376870649 is a wasteful number, since it uses less digits than its factorization.

1376870649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10370 (or 10363 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 51.

The square root of 1376870649 is about 37106.2076882023. The cubic root of 1376870649 is about 1112.4940938793.

It can be divided in two parts, 137 and 6870649, that added together give a palindrome (6870786).

The spelling of 1376870649 in words is "one billion, three hundred seventy-six million, eight hundred seventy thousand, six hundred forty-nine".