747215040140 has 48 divisors (see below), whose sum is σ = 1575626532480. Its totient is φ = 297654147840.

The previous prime is 747215040133. The next prime is 747215040161. The reversal of 747215040140 is 41040512747.

It is a super-2 number, since 2×747215040140² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 747215040140.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8329325 + ... + 8418555.

It is an arithmetic number, because the mean of its divisors is an integer number (32825552760).

Almost surely, 2^747215040140 is an apocalyptic number.

It is an amenable number.

747215040140 is an abundant number, since it is smaller than the sum of its proper divisors (828411492340).

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

747215040140 is a wasteful number, since it uses less digits than its factorization.

747215040140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90962 (or 90960 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 35.

Adding to 747215040140 its reverse (41040512747), we get a palindrome (788255552887).

The spelling of 747215040140 in words is "seven hundred forty-seven billion, two hundred fifteen million, forty thousand, one hundred forty".