1377493679 has 2 divisors, whose sum is σ = 1377493680. Its totient is φ = 1377493678.

The previous prime is 1377493657. The next prime is 1377493699. The reversal of 1377493679 is 9763947731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1377493679 - 2²⁴ = 1360716463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1377493699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688746839 + 688746840.

It is an arithmetic number, because the mean of its divisors is an integer number (688746840).

Almost surely, 2^1377493679 is an apocalyptic number.

1377493679 is a deficient number, since it is larger than the sum of its proper divisors (1).

1377493679 is an equidigital number, since it uses as much as digits as its factorization.

1377493679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6001128, while the sum is 56.

The square root of 1377493679 is about 37114.6019647254. The cubic root of 1377493679 is about 1112.6618686996.

The spelling of 1377493679 in words is "one billion, three hundred seventy-seven million, four hundred ninety-three thousand, six hundred seventy-nine".