1377542818 has 16 divisors (see below), whose sum is σ = 2156958720. Its totient is φ = 658578976.

The previous prime is 1377542779. The next prime is 1377542857. The reversal of 1377542818 is 8182457731.

It is an interprime number because it is at equal distance from previous prime (1377542779) and next prime (1377542857).

It is a super-2 number, since 2×1377542818² = 3795248430846762248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 201663 + ... + 208381.

It is an arithmetic number, because the mean of its divisors is an integer number (134809920).

Almost surely, 2^1377542818 is an apocalyptic number.

1377542818 is a deficient number, since it is larger than the sum of its proper divisors (779415902).

1377542818 is a wasteful number, since it uses less digits than its factorization.

1377542818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11201.

The product of its digits is 376320, while the sum is 46.

The square root of 1377542818 is about 37115.2639489469. The cubic root of 1377542818 is about 1112.6750991152.

The spelling of 1377542818 in words is "one billion, three hundred seventy-seven million, five hundred forty-two thousand, eight hundred eighteen".