1377852899 has 2 divisors, whose sum is σ = 1377852900. Its totient is φ = 1377852898.

The previous prime is 1377852859. The next prime is 1377852943. The reversal of 1377852899 is 9982587731.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1377852899 is a prime.

It is a super-2 number, since 2×1377852899² = 3796957222565408402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1377852829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688926449 + 688926450.

It is an arithmetic number, because the mean of its divisors is an integer number (688926450).

Almost surely, 2^1377852899 is an apocalyptic number.

1377852899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1377852899 is an equidigital number, since it uses as much as digits as its factorization.

1377852899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 59.

The square root of 1377852899 is about 37119.4409844760. The cubic root of 1377852899 is about 1112.7585795265.

The spelling of 1377852899 in words is "one billion, three hundred seventy-seven million, eight hundred fifty-two thousand, eight hundred ninety-nine".