7897147142900 has 18 divisors (see below), whose sum is σ = 17136809300310. Its totient is φ = 3158858857120.

The previous prime is 7897147142897. The next prime is 7897147142921. The reversal of 7897147142900 is 92417417987.

It can be written as a sum of positive squares in 3 ways, for example, as 81734235664 + 7815412907236 = 285892^2 + 2795606^2 .

It is a super-2 number, since 2×7897147142900² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7897147142900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39485735615 + ... + 39485735814.

Almost surely, 2^{7897147142900} is an apocalyptic number.

It is an amenable number.

7897147142900 is an abundant number, since it is smaller than the sum of its proper divisors (9239662157410).

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

7897147142900 is a wasteful number, since it uses less digits than its factorization.

7897147142900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78971471443 (or 78971471436 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 59.

The spelling of 7897147142900 in words is "seven trillion, eight hundred ninety-seven billion, one hundred forty-seven million, one hundred forty-two thousand, nine hundred".