70400736738 has 48 divisors (see below), whose sum is σ = 158216254560. Its totient is φ = 23462182656.

The previous prime is 70400736737. The next prime is 70400736739. The reversal of 70400736738 is 83763700407.

It is an interprime number because it is at equal distance from previous prime (70400736737) and next prime (70400736739).

It is a junction number, because it is equal to n+sod(n) for n = 70400736693 and 70400736702.

It is not an unprimeable number, because it can be changed into a prime (70400736737) 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 23 ways as a sum of consecutive naturals, for example, 3068353 + ... + 3091211.

It is an arithmetic number, because the mean of its divisors is an integer number (3296171970).

Almost surely, 2^70400736738 is an apocalyptic number.

70400736738 is an abundant number, since it is smaller than the sum of its proper divisors (87815517822).

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

70400736738 is a wasteful number, since it uses less digits than its factorization.

70400736738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29213 (or 29201 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 45.

The spelling of 70400736738 in words is "seventy billion, four hundred million, seven hundred thirty-six thousand, seven hundred thirty-eight".