1372550490481 has 27 divisors (see below), whose sum is σ = 1460649217761. Its totient is φ = 1289577167424.

The previous prime is 1372550490473. The next prime is 1372550490527. The reversal of 1372550490481 is 1840940552731.

It is a happy number.

The square root of 1372550490481 is 1171559.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 5381542881 + 1367168947600 = 73359^2 + 1169260^2 .

It is not a de Polignac number, because 1372550490481 - 2³ = 1372550490473 is a prime.

It is a super-2 number, since 2×1372550490481² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1372550490581) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4385145181 + ... + 4385145493.

Almost surely, 2^{1372550490481} is an apocalyptic number.

1372550490481 is the 1171559-th square number.

1372550490481 is the 585780-th centered octagonal number.

It is an amenable number.

1372550490481 is a deficient number, since it is larger than the sum of its proper divisors (88098727280).

1372550490481 is an frugal number, since it uses more digits than its factorization.

1372550490481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 49.

Multiplying 1372550490481 by its sum of digits (49), we get a square (67254974033569 = 8200913²).

The spelling of 1372550490481 in words is "one trillion, three hundred seventy-two billion, five hundred fifty million, four hundred ninety thousand, four hundred eighty-one".