8781052394 has 16 divisors (see below), whose sum is σ = 13464921600. Its totient is φ = 4292927184.

The previous prime is 8781052387. The next prime is 8781052453. The reversal of 8781052394 is 4932501878.

It is a happy number.

It is a super-2 number, since 2×8781052394² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52712 + ... + 142620.

It is an arithmetic number, because the mean of its divisors is an integer number (841557600).

Almost surely, 2^8781052394 is an apocalyptic number.

8781052394 is a deficient number, since it is larger than the sum of its proper divisors (4683869206).

8781052394 is a wasteful number, since it uses less digits than its factorization.

8781052394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90997.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 8781052394 is about 93707.2696966463. The cubic root of 8781052394 is about 2063.0774057892.

The spelling of 8781052394 in words is "eight billion, seven hundred eighty-one million, fifty-two thousand, three hundred ninety-four".