15491095797 has 8 divisors (see below), whose sum is σ = 20668100544. Its totient is φ = 10320744128.

The previous prime is 15491095787. The next prime is 15491095871. The reversal of 15491095797 is 79759019451.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15491095797 - 2⁶ = 15491095733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15491095717) 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, 1657833 + ... + 1667150.

It is an arithmetic number, because the mean of its divisors is an integer number (2583512568).

Almost surely, 2^15491095797 is an apocalyptic number.

It is an amenable number.

15491095797 is a deficient number, since it is larger than the sum of its proper divisors (5177004747).

15491095797 is a wasteful number, since it uses less digits than its factorization.

15491095797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3326539.

The product of its (nonzero) digits is 3572100, while the sum is 57.

The spelling of 15491095797 in words is "fifteen billion, four hundred ninety-one million, ninety-five thousand, seven hundred ninety-seven".