15718901461 has 2 divisors, whose sum is σ = 15718901462. Its totient is φ = 15718901460.

The previous prime is 15718901357. The next prime is 15718901479. The reversal of 15718901461 is 16410981751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9205443025 + 6513458436 = 95945^2 + 80706^2 .

It is a cyclic number.

It is not a de Polignac number, because 15718901461 - 2¹³ = 15718893269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15718971461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7859450730 + 7859450731.

It is an arithmetic number, because the mean of its divisors is an integer number (7859450731).

Almost surely, 2^15718901461 is an apocalyptic number.

It is an amenable number.

15718901461 is a deficient number, since it is larger than the sum of its proper divisors (1).

15718901461 is an equidigital number, since it uses as much as digits as its factorization.

15718901461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 43.

The spelling of 15718901461 in words is "fifteen billion, seven hundred eighteen million, nine hundred one thousand, four hundred sixty-one".