70821410840 has 32 divisors (see below), whose sum is σ = 164488440960. Its totient is φ = 27414739200.

The previous prime is 70821410827. The next prime is 70821410897. The reversal of 70821410840 is 4801412807.

It is a self number, because there is not a number n which added to its sum of digits gives 70821410840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28555781 + ... + 28558260.

It is an arithmetic number, because the mean of its divisors is an integer number (5140263780).

Almost surely, 2^70821410840 is an apocalyptic number.

It is an amenable number.

70821410840 is an abundant number, since it is smaller than the sum of its proper divisors (93667030120).

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

70821410840 is a wasteful number, since it uses less digits than its factorization.

70821410840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57114083 (or 57114079 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 35.

The spelling of 70821410840 in words is "seventy billion, eight hundred twenty-one million, four hundred ten thousand, eight hundred forty".