1397947406900 has 36 divisors (see below), whose sum is σ = 3309322773120. Its totient is φ = 508344511200.

The previous prime is 1397947406819. The next prime is 1397947406929. The reversal of 1397947406900 is 96047497931.

It is a super-2 number, since 2×1397947406900² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1397947406900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 635429540 + ... + 635431739.

Almost surely, 2^{1397947406900} is an apocalyptic number.

1397947406900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1397947406900 is an abundant number, since it is smaller than the sum of its proper divisors (1911375366220).

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

1397947406900 is a wasteful number, since it uses less digits than its factorization.

1397947406900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270861304 (or 1270861297 counting only the distinct ones).

The product of its (nonzero) digits is 10287648, while the sum is 59.

The spelling of 1397947406900 in words is "one trillion, three hundred ninety-seven billion, nine hundred forty-seven million, four hundred six thousand, nine hundred".