70388027836 has 72 divisors (see below), whose sum is σ = 150906779520. Its totient is φ = 28564335072.

The previous prime is 70388027819. The next prime is 70388027869. The reversal of 70388027836 is 63872088307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10747915 + ... + 10754461.

Almost surely, 2^70388027836 is an apocalyptic number.

70388027836 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70388027836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75453389760).

70388027836 is an abundant number, since it is smaller than the sum of its proper divisors (80518751684).

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

70388027836 is a wasteful number, since it uses less digits than its factorization.

70388027836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9471 (or 9462 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 70388027836 in words is "seventy billion, three hundred eighty-eight million, twenty-seven thousand, eight hundred thirty-six".