7854389504 has 72 divisors (see below), whose sum is σ = 17877416760. Its totient is φ = 3411836928.

The previous prime is 7854389479. The next prime is 7854389507. The reversal of 7854389504 is 4059834587.

It can be written as a sum of positive squares in 4 ways, for example, as 499611904 + 7354777600 = 22352^2 + 85760^2 .

It is not an unprimeable number, because it can be changed into a prime (7854389507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12839 + ... + 125990.

It is an arithmetic number, because the mean of its divisors is an integer number (248297455).

Almost surely, 2^7854389504 is an apocalyptic number.

It is an amenable number.

7854389504 is an abundant number, since it is smaller than the sum of its proper divisors (10023027256).

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

7854389504 is a wasteful number, since it uses less digits than its factorization.

7854389504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138875 (or 138861 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 53.

The square root of 7854389504 is about 88624.9936755992. The cubic root of 7854389504 is about 1987.7914189141.

The spelling of 7854389504 in words is "seven billion, eight hundred fifty-four million, three hundred eighty-nine thousand, five hundred four".