71070245400 has 576 divisors, whose sum is σ = 279519609600. Its totient is φ = 14620953600.

The previous prime is 71070245369. The next prime is 71070245401. The reversal of 71070245400 is 454207017.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71070245401) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 55393159 + ... + 55394441.

It is an arithmetic number, because the mean of its divisors is an integer number (485277100).

Almost surely, 2^71070245400 is an apocalyptic number.

71070245400 is a gapful number since it is divisible by the number (70) 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 71070245400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139759804800).

71070245400 is an abundant number, since it is smaller than the sum of its proper divisors (208449364200).

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

71070245400 is a wasteful number, since it uses less digits than its factorization.

71070245400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440 (or 1420 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

The spelling of 71070245400 in words is "seventy-one billion, seventy million, two hundred forty-five thousand, four hundred".