71424957870 has 256 divisors, whose sum is σ = 231040512000. Its totient is φ = 15328051200.

The previous prime is 71424957859. The next prime is 71424957917. The reversal of 71424957870 is 7875942417.

71424957870 is a `hidden beast` number, since 7 + 14 + 2 + 495 + 78 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 14423895 + ... + 14428845.

It is an arithmetic number, because the mean of its divisors is an integer number (902502000).

Almost surely, 2^71424957870 is an apocalyptic number.

71424957870 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 71424957870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115520256000).

71424957870 is an abundant number, since it is smaller than the sum of its proper divisors (159615554130).

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

71424957870 is a wasteful number, since it uses less digits than its factorization.

71424957870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5440 (or 5434 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 54.

The spelling of 71424957870 in words is "seventy-one billion, four hundred twenty-four million, nine hundred fifty-seven thousand, eight hundred seventy".