70405790406 has 32 divisors (see below), whose sum is σ = 167924371968. Its totient is φ = 19241333760.

The previous prime is 70405790401. The next prime is 70405790417. The reversal of 70405790406 is 60409750407.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70405790401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36440955 + ... + 36442886.

It is an arithmetic number, because the mean of its divisors is an integer number (5247636624).

Almost surely, 2^70405790406 is an apocalyptic number.

70405790406 is an abundant number, since it is smaller than the sum of its proper divisors (97518581562).

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

70405790406 is a wasteful number, since it uses less digits than its factorization.

70405790406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72883876.

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 70405790406 in words is "seventy billion, four hundred five million, seven hundred ninety thousand, four hundred six".