1397733677949 has 24 divisors (see below), whose sum is σ = 2188961186880. Its totient is φ = 790950533184.

The previous prime is 1397733677917. The next prime is 1397733677981. The reversal of 1397733677949 is 9497763377931.

It is an interprime number because it is at equal distance from previous prime (1397733677917) and next prime (1397733677981).

It is not a de Polignac number, because 1397733677949 - 2⁵ = 1397733677917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397733677749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46142104 + ... + 46172385.

It is an arithmetic number, because the mean of its divisors is an integer number (91206716120).

Almost surely, 2^{1397733677949} is an apocalyptic number.

It is an amenable number.

1397733677949 is a deficient number, since it is larger than the sum of its proper divisors (791227508931).

1397733677949 is a wasteful number, since it uses less digits than its factorization.

1397733677949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92314609 (or 92314602 counting only the distinct ones).

The product of its digits is 1134213192, while the sum is 75.

The spelling of 1397733677949 in words is "one trillion, three hundred ninety-seven billion, seven hundred thirty-three million, six hundred seventy-seven thousand, nine hundred forty-nine".