1491192758260 has 192 divisors, whose sum is σ = 3396752755200. Its totient is φ = 548647077888.

The previous prime is 1491192758257. The next prime is 1491192758269. The reversal of 1491192758260 is 628572911941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1491192758269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 731334321 + ... + 731336359.

It is an arithmetic number, because the mean of its divisors is an integer number (17691420600).

Almost surely, 2^{1491192758260} is an apocalyptic number.

1491192758260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1491192758260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1698376377600).

1491192758260 is an abundant number, since it is smaller than the sum of its proper divisors (1905559996940).

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

1491192758260 is a wasteful number, since it uses less digits than its factorization.

1491192758260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810 (or 2808 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 55.

The spelling of 1491192758260 in words is "one trillion, four hundred ninety-one billion, one hundred ninety-two million, seven hundred fifty-eight thousand, two hundred sixty".