1397095791440 has 40 divisors (see below), whose sum is σ = 3389475881088. Its totient is φ = 534540997760.

The previous prime is 1397095791439. The next prime is 1397095791479. The reversal of 1397095791440 is 441975907931.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 1397095791440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379643756 + ... + 379647435.

Almost surely, 2^{1397095791440} is an apocalyptic number.

1397095791440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1397095791440 is an abundant number, since it is smaller than the sum of its proper divisors (1992380089648).

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

1397095791440 is a wasteful number, since it uses less digits than its factorization.

1397095791440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759291227 (or 759291221 counting only the distinct ones).

The product of its (nonzero) digits is 8573040, while the sum is 59.

The spelling of 1397095791440 in words is "one trillion, three hundred ninety-seven billion, ninety-five million, seven hundred ninety-one thousand, four hundred forty".