70818353540 has 48 divisors (see below), whose sum is σ = 163144860480. Its totient is φ = 25608247680.

The previous prime is 70818353531. The next prime is 70818353549. The reversal of 70818353540 is 4535381807.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (70818353531) and next prime (70818353549).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 70818353491 and 70818353500.

It is not an unprimeable number, because it can be changed into a prime (70818353549) 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, 859787 + ... + 938546.

It is an arithmetic number, because the mean of its divisors is an integer number (3398851260).

Almost surely, 2^70818353540 is an apocalyptic number.

It is an amenable number.

70818353540 is an abundant number, since it is smaller than the sum of its proper divisors (92326506940).

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

70818353540 is a wasteful number, since it uses less digits than its factorization.

70818353540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798532 (or 1798530 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 70818353540 in words is "seventy billion, eight hundred eighteen million, three hundred fifty-three thousand, five hundred forty".