1397426057700 has 72 divisors (see below), whose sum is σ = 4047180338880. Its totient is φ = 372281884800.

The previous prime is 1397426057693. The next prime is 1397426057749. The reversal of 1397426057700 is 77506247931.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1974840 + ... + 2587439.

It is an arithmetic number, because the mean of its divisors is an integer number (56210838040).

Almost surely, 2^{1397426057700} is an apocalyptic number.

1397426057700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1397426057700 is an abundant number, since it is smaller than the sum of its proper divisors (2649754281180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1397426057700 is a wasteful number, since it uses less digits than its factorization.

1397426057700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4563317 (or 4563310 counting only the distinct ones).

The product of its (nonzero) digits is 2222640, while the sum is 51.

The spelling of 1397426057700 in words is "one trillion, three hundred ninety-seven billion, four hundred twenty-six million, fifty-seven thousand, seven hundred".