115215443453402 has 64 divisors (see below), whose sum is σ = 179908442194464. Its totient is φ = 55293747609600.

The previous prime is 115215443453399. The next prime is 115215443453443. The reversal of 115215443453402 is 204354344512511.

It can be written as a sum of positive squares in 16 ways, for example, as 114858997438441 + 356446014961 = 10717229^2 + 597031^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3986541152 + ... + 3986570052.

Almost surely, 2^{115215443453402} is an apocalyptic number.

115215443453402 is a deficient number, since it is larger than the sum of its proper divisors (64692998741062).

115215443453402 is a wasteful number, since it uses less digits than its factorization.

115215443453402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31523.

The product of its (nonzero) digits is 1152000, while the sum is 44.

Adding to 115215443453402 its reverse (204354344512511), we get a palindrome (319569787965913).

The spelling of 115215443453402 in words is "one hundred fifteen trillion, two hundred fifteen billion, four hundred forty-three million, four hundred fifty-three thousand, four hundred two".