71254240000 has 90 divisors (see below), whose sum is σ = 177731185940. Its totient is φ = 28501632000.

The previous prime is 71254239989. The next prime is 71254240009. The reversal of 71254240000 is 4245217.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (71254240009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 62670 + ... + 382669.

Almost surely, 2^71254240000 is an apocalyptic number.

It is an amenable number.

71254240000 is an abundant number, since it is smaller than the sum of its proper divisors (106476945940).

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

71254240000 is an frugal number, since it uses more digits than its factorization.

71254240000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445375 (or 445346 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

Adding to 71254240000 its reverse (4245217), we get a palindrome (71258485217).

The spelling of 71254240000 in words is "seventy-one billion, two hundred fifty-four million, two hundred forty thousand".