1551492040791 has 96 divisors (see below), whose sum is σ = 2661398691840. Its totient is φ = 786602583360.

The previous prime is 1551492040727. The next prime is 1551492040807. The reversal of 1551492040791 is 1970402941551.

It is not a de Polignac number, because 1551492040791 - 2⁶ = 1551492040727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1551492040791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1551492040711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 42856200 + ... + 42892386.

It is an arithmetic number, because the mean of its divisors is an integer number (27722903040).

Almost surely, 2^{1551492040791} is an apocalyptic number.

1551492040791 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1551492040791 is a deficient number, since it is larger than the sum of its proper divisors (1109906651049).

1551492040791 is a wasteful number, since it uses less digits than its factorization.

1551492040791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36625 (or 36614 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 48.

The spelling of 1551492040791 in words is "one trillion, five hundred fifty-one billion, four hundred ninety-two million, forty thousand, seven hundred ninety-one".