71498005020 has 240 divisors, whose sum is σ = 242564591808. Its totient is φ = 17525237760.

The previous prime is 71498005013. The next prime is 71498005049. The reversal of 71498005020 is 2050089417.

71498005020 is a `hidden beast` number, since 7 + 149 + 8 + 0 + 0 + 502 + 0 = 666.

It is a super-2 number, since 2×71498005020² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5068417 + ... + 5082503.

Almost surely, 2^71498005020 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 71498005020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121282295904).

71498005020 is an abundant number, since it is smaller than the sum of its proper divisors (171066586788).

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

71498005020 is a wasteful number, since it uses less digits than its factorization.

71498005020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14362 (or 14351 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 71498005020 in words is "seventy-one billion, four hundred ninety-eight million, five thousand, twenty".