1497640137488 has 40 divisors (see below), whose sum is σ = 3179661655296. Its totient is φ = 677692828800.

The previous prime is 1497640137481. The next prime is 1497640137529. The reversal of 1497640137488 is 8847310467941.

It is a self number, because there is not a number n which added to its sum of digits gives 1497640137488.

It is not an unprimeable number, because it can be changed into a prime (1497640137481) 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, 19039943 + ... + 19118438.

Almost surely, 2^{1497640137488} is an apocalyptic number.

It is an amenable number.

1497640137488 is an abundant number, since it is smaller than the sum of its proper divisors (1682021517808).

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

1497640137488 is a wasteful number, since it uses less digits than its factorization.

1497640137488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38158623 (or 38158617 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 62.

The spelling of 1497640137488 in words is "one trillion, four hundred ninety-seven billion, six hundred forty million, one hundred thirty-seven thousand, four hundred eighty-eight".