70861187502 has 128 divisors (see below), whose sum is σ = 182507212800. Its totient is φ = 19961365248.

The previous prime is 70861187497. The next prime is 70861187519. The reversal of 70861187502 is 20578116807.

It is a happy number.

70861187502 is a `hidden beast` number, since 7 + 0 + 8 + 61 + 1 + 87 + 502 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12545643 + ... + 12551289.

It is an arithmetic number, because the mean of its divisors is an integer number (1425837600).

Almost surely, 2^70861187502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70861187502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91253606400).

70861187502 is an abundant number, since it is smaller than the sum of its proper divisors (111646025298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70861187502 is a wasteful number, since it uses less digits than its factorization.

70861187502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6127 (or 6121 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 45.

The spelling of 70861187502 in words is "seventy billion, eight hundred sixty-one million, one hundred eighty-seven thousand, five hundred two".