5178700785 has 16 divisors (see below), whose sum is σ = 8320308480. Its totient is φ = 2750511360.

The previous prime is 5178700771. The next prime is 5178700789. The reversal of 5178700785 is 5870078715.

It is a happy number.

It is not a de Polignac number, because 5178700785 - 2⁹ = 5178700273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5178700789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 712665 + ... + 719894.

It is an arithmetic number, because the mean of its divisors is an integer number (520019280).

Almost surely, 2^5178700785 is an apocalyptic number.

It is an amenable number.

5178700785 is a deficient number, since it is larger than the sum of its proper divisors (3141607695).

5178700785 is a wasteful number, since it uses less digits than its factorization.

5178700785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432808.

The product of its (nonzero) digits is 548800, while the sum is 48.

The square root of 5178700785 is about 71963.1904865258. The cubic root of 5178700785 is about 1730.1095618184.

The spelling of 5178700785 in words is "five billion, one hundred seventy-eight million, seven hundred thousand, seven hundred eighty-five".