70400006742 has 128 divisors (see below), whose sum is σ = 157380765696. Its totient is φ = 20858452992.

The previous prime is 70400006741. The next prime is 70400006753. The reversal of 70400006742 is 24760000407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70400006741) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 79368223 + ... + 79369109.

It is an arithmetic number, because the mean of its divisors is an integer number (1229537232).

Almost surely, 2^70400006742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70400006742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78690382848).

70400006742 is an abundant number, since it is smaller than the sum of its proper divisors (86980758954).

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

70400006742 is a wasteful number, since it uses less digits than its factorization.

70400006742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294.

The product of its (nonzero) digits is 9408, while the sum is 30.

The spelling of 70400006742 in words is "seventy billion, four hundred million, six thousand, seven hundred forty-two".