70001256950 has 24 divisors (see below), whose sum is σ = 131354581608. Its totient is φ = 27752708480.

The previous prime is 70001256943. The next prime is 70001256989. The reversal of 70001256950 is 5965210007.

It is a self number, because there is not a number n which added to its sum of digits gives 70001256950.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6189152 + ... + 6200451.

It is an arithmetic number, because the mean of its divisors is an integer number (5473107567).

Almost surely, 2^70001256950 is an apocalyptic number.

70001256950 is a deficient number, since it is larger than the sum of its proper divisors (61353324658).

70001256950 is a wasteful number, since it uses less digits than its factorization.

70001256950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12389728 (or 12389723 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 35.

Adding to 70001256950 its reverse (5965210007), we get a palindrome (75966466957).

The spelling of 70001256950 in words is "seventy billion, one million, two hundred fifty-six thousand, nine hundred fifty".