706402209540 has 96 divisors (see below), whose sum is σ = 2083918878720. Its totient is φ = 178297393536.

The previous prime is 706402209511. The next prime is 706402209577. The reversal of 706402209540 is 45902204607.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 976527 + ... + 1538313.

It is an arithmetic number, because the mean of its divisors is an integer number (21707488320).

Almost surely, 2^706402209540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 706402209540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1041959439360).

706402209540 is an abundant number, since it is smaller than the sum of its proper divisors (1377516669180).

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

706402209540 is a wasteful number, since it uses less digits than its factorization.

706402209540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562921 (or 562919 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

It can be divided in two parts, 70640 and 2209540, that added together give a triangular number (2280180 = T₂₁₃₅).

The spelling of 706402209540 in words is "seven hundred six billion, four hundred two million, two hundred nine thousand, five hundred forty".