70387788825 has 18 divisors (see below), whose sum is σ = 126072351054. Its totient is φ = 37540153920.

The previous prime is 70387788787. The next prime is 70387788829. The reversal of 70387788825 is 52888778307.

It can be written as a sum of positive squares in 3 ways, for example, as 11398551696 + 58989237129 = 106764^2 + 242877^2 .

It is not a de Polignac number, because 70387788825 - 2⁹ = 70387788313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70387788829) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 156417084 + ... + 156417533.

It is an arithmetic number, because the mean of its divisors is an integer number (7004019503).

Almost surely, 2^70387788825 is an apocalyptic number.

70387788825 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

70387788825 is a deficient number, since it is larger than the sum of its proper divisors (55684562229).

70387788825 is a wasteful number, since it uses less digits than its factorization.

70387788825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312834633 (or 312834625 counting only the distinct ones).

The product of its (nonzero) digits is 42147840, while the sum is 63.

The spelling of 70387788825 in words is "seventy billion, three hundred eighty-seven million, seven hundred eighty-eight thousand, eight hundred twenty-five".