1290272157748 has 72 divisors (see below), whose sum is σ = 2777486471424. Its totient is φ = 522083721600.

The previous prime is 1290272157737. The next prime is 1290272157763. The reversal of 1290272157748 is 8477512720921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2340586 + ... + 2838817.

It is an arithmetic number, because the mean of its divisors is an integer number (38576200992).

Almost surely, 2^{1290272157748} is an apocalyptic number.

It is an amenable number.

1290272157748 is an abundant number, since it is smaller than the sum of its proper divisors (1487214313676).

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

1290272157748 is a wasteful number, since it uses less digits than its factorization.

1290272157748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5179493 (or 5179484 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 55.

The spelling of 1290272157748 in words is "one trillion, two hundred ninety billion, two hundred seventy-two million, one hundred fifty-seven thousand, seven hundred forty-eight".