70699280450 has 54 divisors (see below), whose sum is σ = 135991567467. Its totient is φ = 27344901600.

The previous prime is 70699280429. The next prime is 70699280507. The reversal of 70699280450 is 5408299607.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 266897569 + 70432382881 = 16337^2 + 265391^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=188015.

It is a super-2 number, since 2×70699280450² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 58284044 + ... + 58285256.

Almost surely, 2^70699280450 is an apocalyptic number.

70699280450 is a deficient number, since it is larger than the sum of its proper divisors (65292287017).

70699280450 is an equidigital number, since it uses as much as digits as its factorization.

70699280450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500 (or 1251 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 50.

Multiplying 70699280450 by its sum of digits (50), we get a square (3534964022500 = 1880150²).

70699280450 divided by its sum of digits (50) gives a square (1413985609 = 37603²).

The spelling of 70699280450 in words is "seventy billion, six hundred ninety-nine million, two hundred eighty thousand, four hundred fifty".