10787156778 has 48 divisors (see below), whose sum is σ = 23405837184. Its totient is φ = 3312176640.

The previous prime is 10787156771. The next prime is 10787156789. The reversal of 10787156778 is 87765178701.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10787156771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15318 + ... + 147678.

It is an arithmetic number, because the mean of its divisors is an integer number (487621608).

Almost surely, 2^10787156778 is an apocalyptic number.

10787156778 is an abundant number, since it is smaller than the sum of its proper divisors (12618680406).

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

10787156778 is a wasteful number, since it uses less digits than its factorization.

10787156778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132447 (or 132430 counting only the distinct ones).

The product of its (nonzero) digits is 4609920, while the sum is 57.

The spelling of 10787156778 in words is "ten billion, seven hundred eighty-seven million, one hundred fifty-six thousand, seven hundred seventy-eight".