70557271380 has 216 divisors, whose sum is σ = 222335535240. Its totient is φ = 18106836480.

The previous prime is 70557271313. The next prime is 70557271387. The reversal of 70557271380 is 8317275507.

70557271380 is a `hidden beast` number, since 7 + 0 + 5 + 572 + 71 + 3 + 8 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3540488004 + 67016783376 = 59502^2 + 258876^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70557271387) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 24253366 + ... + 24256274.

Almost surely, 2^70557271380 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 70557271380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111167767620).

70557271380 is an abundant number, since it is smaller than the sum of its proper divisors (151778263860).

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

70557271380 is a wasteful number, since it uses less digits than its factorization.

70557271380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3079 (or 3027 counting only the distinct ones).

The product of its (nonzero) digits is 411600, while the sum is 45.

The spelling of 70557271380 in words is "seventy billion, five hundred fifty-seven million, two hundred seventy-one thousand, three hundred eighty".