70049618289225 has 81 divisors (see below), whose sum is σ = 126653021853813. Its totient is φ = 37009814690880.

The previous prime is 70049618289191. The next prime is 70049618289241. The reversal of 70049618289225 is 52298281694007.

The square root of 70049618289225 is 8369565.

It is a perfect power (a square), and thus also a powerful number.

70049618289225 is a `hidden beast` number, since 7 + 0 + 0 + 4 + 9 + 618 + 2 + 8 + 9 + 2 + 2 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 256826981961 + 69792791307264 = 506781^2 + 8354208^2 .

It is a de Polignac number, because none of the positive numbers 2^k-70049618289225 is a prime.

It is a super-2 number, since 2×70049618289225² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 13684236216 + ... + 13684241334.

Almost surely, 2^{70049618289225} is an apocalyptic number.

70049618289225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

70049618289225 is the 8369565-th square number.

70049618289225 is the 4184783-rd centered octagonal number.

It is an amenable number.

70049618289225 is a deficient number, since it is larger than the sum of its proper divisors (56603403564588).

70049618289225 is an frugal number, since it uses more digits than its factorization.

70049618289225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10472 (or 5236 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 63.

The spelling of 70049618289225 in words is "seventy trillion, forty-nine billion, six hundred eighteen million, two hundred eighty-nine thousand, two hundred twenty-five".