71455019892 has 24 divisors (see below), whose sum is σ = 166794325152. Its totient is φ = 23808919200.

The previous prime is 71455019891. The next prime is 71455019927. The reversal of 71455019892 is 29891055417.

It is a super-2 number, since 2×71455019892² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71455019891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1145959 + ... + 1206702.

It is an arithmetic number, because the mean of its divisors is an integer number (6949763548).

Almost surely, 2^71455019892 is an apocalyptic number.

It is an amenable number.

71455019892 is an abundant number, since it is smaller than the sum of its proper divisors (95339305260).

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

71455019892 is a wasteful number, since it uses less digits than its factorization.

71455019892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2355199 (or 2355197 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 51.

The spelling of 71455019892 in words is "seventy-one billion, four hundred fifty-five million, nineteen thousand, eight hundred ninety-two".