1397675024820 has 120 divisors (see below), whose sum is σ = 4575191410944. Its totient is φ = 356508402624.

The previous prime is 1397675024743. The next prime is 1397675024831. The reversal of 1397675024820 is 284205767931.

It is a happy number.

1397675024820 is a `hidden beast` number, since 1 + 3 + 9 + 76 + 7 + 502 + 48 + 20 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18718444 + ... + 18792963.

It is a 1-persistent number, because it is pandigital, but 2⋅1397675024820 = 2795350049640 is not.

Almost surely, 2^{1397675024820} is an apocalyptic number.

1397675024820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1397675024820 is an abundant number, since it is smaller than the sum of its proper divisors (3177516386124).

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

1397675024820 is a wasteful number, since it uses less digits than its factorization.

1397675024820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37511451 (or 37511440 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 1397675024820 in words is "one trillion, three hundred ninety-seven billion, six hundred seventy-five million, twenty-four thousand, eight hundred twenty".