70440477140 has 48 divisors (see below), whose sum is σ = 161624804544. Its totient is φ = 25574707200.

The previous prime is 70440477103. The next prime is 70440477161. The reversal of 70440477140 is 4177404407.

It is a junction number, because it is equal to n+sod(n) for n = 70440477094 and 70440477103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108734 + ... + 390773.

It is an arithmetic number, because the mean of its divisors is an integer number (3367183428).

Almost surely, 2^70440477140 is an apocalyptic number.

It is an amenable number.

70440477140 is an abundant number, since it is smaller than the sum of its proper divisors (91184327404).

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

70440477140 is a wasteful number, since it uses less digits than its factorization.

70440477140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500168 (or 500166 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 38.

The spelling of 70440477140 in words is "seventy billion, four hundred forty million, four hundred seventy-seven thousand, one hundred forty".