9978025999357 has 32 divisors (see below), whose sum is σ = 11062211594112. Its totient is φ = 8940282833664.

The previous prime is 9978025999339. The next prime is 9978025999427. The reversal of 9978025999357 is 7539995208799.

It is not a de Polignac number, because 9978025999357 - 2²⁷ = 9977891781629 is a prime.

It is a super-2 number, since 2×9978025999357² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9978025999657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 378702658 + ... + 378729004.

It is an arithmetic number, because the mean of its divisors is an integer number (345694112316).

Almost surely, 2^{9978025999357} is an apocalyptic number.

It is an amenable number.

9978025999357 is a deficient number, since it is larger than the sum of its proper divisors (1084185594755).

9978025999357 is a wasteful number, since it uses less digits than its factorization.

9978025999357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28237.

The product of its (nonzero) digits is 3472081200, while the sum is 82.

The spelling of 9978025999357 in words is "nine trillion, nine hundred seventy-eight billion, twenty-five million, nine hundred ninety-nine thousand, three hundred fifty-seven".