70836761421 has 12 divisors (see below), whose sum is σ = 102366156672. Its totient is φ = 47203096776.

The previous prime is 70836761399. The next prime is 70836761483. The reversal of 70836761421 is 12416763807.

70836761421 is a `hidden beast` number, since 7 + 0 + 8 + 3 + 6 + 7 + 614 + 21 = 666.

It is not a de Polignac number, because 70836761421 - 2⁷ = 70836761293 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70836761921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1763271 + ... + 1802996.

It is an arithmetic number, because the mean of its divisors is an integer number (8530513056).

Almost surely, 2^70836761421 is an apocalyptic number.

It is an amenable number.

70836761421 is a deficient number, since it is larger than the sum of its proper divisors (31529395251).

70836761421 is a wasteful number, since it uses less digits than its factorization.

70836761421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3568480 (or 3568477 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 70836761421 in words is "seventy billion, eight hundred thirty-six million, seven hundred sixty-one thousand, four hundred twenty-one".