70400513252 has 6 divisors (see below), whose sum is σ = 123200898198. Its totient is φ = 35200256624.

The previous prime is 70400513251. The next prime is 70400513257. The reversal of 70400513252 is 25231500407.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 58668590656 + 11731922596 = 242216^2 + 108314^2 .

It is a super-2 number, since 2×70400513252² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70400513251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8800064153 + ... + 8800064160.

It is an arithmetic number, because the mean of its divisors is an integer number (20533483033).

Almost surely, 2^70400513252 is an apocalyptic number.

It is an amenable number.

70400513252 is a deficient number, since it is larger than the sum of its proper divisors (52800384946).

70400513252 is a wasteful number, since it uses less digits than its factorization.

70400513252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17600128317 (or 17600128315 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The spelling of 70400513252 in words is "seventy billion, four hundred million, five hundred thirteen thousand, two hundred fifty-two".