191315414452 has 6 divisors (see below), whose sum is σ = 334801975298. Its totient is φ = 95657707224.

The previous prime is 191315414447. The next prime is 191315414467. The reversal of 191315414452 is 254414513191.

It can be written as a sum of positive squares in only one way, i.e., 161647418916 + 29667995536 = 402054^2 + 172244^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23914426803 + ... + 23914426810.

Almost surely, 2^191315414452 is an apocalyptic number.

It is an amenable number.

191315414452 is a deficient number, since it is larger than the sum of its proper divisors (143486560846).

191315414452 is a wasteful number, since it uses less digits than its factorization.

191315414452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47828853617 (or 47828853615 counting only the distinct ones).

The product of its digits is 86400, while the sum is 40.

The spelling of 191315414452 in words is "one hundred ninety-one billion, three hundred fifteen million, four hundred fourteen thousand, four hundred fifty-two".