70861012950 has 192 divisors, whose sum is σ = 219837929472. Its totient is φ = 14705625600.

The previous prime is 70861012939. The next prime is 70861012951. The reversal of 70861012950 is 5921016807.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 70861012899 and 70861012908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70861012951) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 790099 + ... + 875201.

It is an arithmetic number, because the mean of its divisors is an integer number (1144989216).

Almost surely, 2^70861012950 is an apocalyptic number.

70861012950 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 70861012950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109918964736).

70861012950 is an abundant number, since it is smaller than the sum of its proper divisors (148976916522).

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

70861012950 is a wasteful number, since it uses less digits than its factorization.

70861012950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85199 (or 85194 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 39.

The spelling of 70861012950 in words is "seventy billion, eight hundred sixty-one million, twelve thousand, nine hundred fifty".