9278787745997 has 64 divisors (see below), whose sum is σ = 11757752156160. Its totient is φ = 7112567404800.

The previous prime is 9278787745951. The next prime is 9278787746009. The reversal of 9278787745997 is 7995477878729.

It is not a de Polignac number, because 9278787745997 - 2¹² = 9278787741901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9278787745907) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3385182047 + ... + 3385184787.

It is an arithmetic number, because the mean of its divisors is an integer number (183714877440).

Almost surely, 2^{9278787745997} is an apocalyptic number.

It is an amenable number.

9278787745997 is a deficient number, since it is larger than the sum of its proper divisors (2478964410163).

9278787745997 is a wasteful number, since it uses less digits than its factorization.

9278787745997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4674.

The product of its digits is 31365895680, while the sum is 89.

The spelling of 9278787745997 in words is "nine trillion, two hundred seventy-eight billion, seven hundred eighty-seven million, seven hundred forty-five thousand, nine hundred ninety-seven".