1377493699 has 2 divisors, whose sum is σ = 1377493700. Its totient is φ = 1377493698.

The previous prime is 1377493679. The next prime is 1377493703. The reversal of 1377493699 is 9963947731.

It is a strong prime.

It is an emirp because it is prime and its reverse (9963947731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1377493699 - 2¹³ = 1377485507 is a prime.

It is not a weakly prime, because it can be changed into another prime (1377493679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688746849 + 688746850.

It is an arithmetic number, because the mean of its divisors is an integer number (688746850).

Almost surely, 2^1377493699 is an apocalyptic number.

1377493699 is a deficient number, since it is larger than the sum of its proper divisors (1).

1377493699 is an equidigital number, since it uses as much as digits as its factorization.

1377493699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7715736, while the sum is 58.

The square root of 1377493699 is about 37114.6022341612. The cubic root of 1377493699 is about 1112.6618740846.

The spelling of 1377493699 in words is "one billion, three hundred seventy-seven million, four hundred ninety-three thousand, six hundred ninety-nine".