7977089245 has 8 divisors (see below), whose sum is σ = 9660328920. Its totient is φ = 6323123520.

The previous prime is 7977089233. The next prime is 7977089269. The reversal of 7977089245 is 5429807797.

It can be written as a sum of positive squares in 4 ways, for example, as 188320729 + 7788768516 = 13723^2 + 88254^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7977089245 - 2¹⁷ = 7976958173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7977089245.

It is a congruent number.

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, 7317886 + ... + 7318975.

It is an arithmetic number, because the mean of its divisors is an integer number (1207541115).

Almost surely, 2^7977089245 is an apocalyptic number.

It is an amenable number.

7977089245 is a deficient number, since it is larger than the sum of its proper divisors (1683239675).

7977089245 is a wasteful number, since it uses less digits than its factorization.

7977089245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14636975.

The product of its (nonzero) digits is 8890560, while the sum is 58.

The square root of 7977089245 is about 89314.5522577368. The cubic root of 7977089245 is about 1998.0889449325.

The spelling of 7977089245 in words is "seven billion, nine hundred seventy-seven million, eighty-nine thousand, two hundred forty-five".