193917155071396 has 81 divisors (see below), whose sum is σ = 366011967594819. Its totient is φ = 89878409668608.

The previous prime is 193917155071331. The next prime is 193917155071427. The reversal of 193917155071396 is 693170551719391.

The square root of 193917155071396 is 13925414.

It is a perfect power (a square), and thus also a powerful number.

193917155071396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 22592092696996 + 171325062374400 = 4753114^2 + 13089120^2 .

It is a Harshad number since it is a multiple of its sum of digits (67).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 31722090036 + ... + 31722096148.

Almost surely, 2^{193917155071396} is an apocalyptic number.

193917155071396 is the 13925414-th square number.

It is an amenable number.

193917155071396 is a deficient number, since it is larger than the sum of its proper divisors (172094812523423).

193917155071396 is an frugal number, since it uses more digits than its factorization.

193917155071396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12398 (or 6199 counting only the distinct ones).

The product of its (nonzero) digits is 48223350, while the sum is 67.

The spelling of 193917155071396 in words is "one hundred ninety-three trillion, nine hundred seventeen billion, one hundred fifty-five million, seventy-one thousand, three hundred ninety-six".