70493732550 has 432 divisors, whose sum is σ = 216640419840. Its totient is φ = 16377707520.

The previous prime is 70493732513. The next prime is 70493732599. The reversal of 70493732550 is 5523739407.

70493732550 is a `hidden beast` number, since 7 + 0 + 4 + 93 + 7 + 3 + 2 + 550 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 70493732496 and 70493732505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 116134347 + ... + 116134953.

Almost surely, 2^70493732550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70493732550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108320209920).

70493732550 is an abundant number, since it is smaller than the sum of its proper divisors (146146687290).

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

70493732550 is a wasteful number, since it uses less digits than its factorization.

70493732550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725 (or 700 counting only the distinct ones).

The product of its (nonzero) digits is 793800, while the sum is 45.

The spelling of 70493732550 in words is "seventy billion, four hundred ninety-three million, seven hundred thirty-two thousand, five hundred fifty".