71049613240 has 32 divisors (see below), whose sum is σ = 160920329760. Its totient is φ = 28231632000.

The previous prime is 71049613231. The next prime is 71049613249. The reversal of 71049613240 is 4231694017.

It is an interprime number because it is at equal distance from previous prime (71049613231) and next prime (71049613249).

It is a super-3 number, since 3×71049613240³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71049613240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71049613249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5875551 + ... + 5887630.

It is an arithmetic number, because the mean of its divisors is an integer number (5028760305).

Almost surely, 2^71049613240 is an apocalyptic number.

It is an amenable number.

71049613240 is an abundant number, since it is smaller than the sum of its proper divisors (89870716520).

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

71049613240 is a wasteful number, since it uses less digits than its factorization.

71049613240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11763343 (or 11763339 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 71049613240 in words is "seventy-one billion, forty-nine million, six hundred thirteen thousand, two hundred forty".