1115639401654 has 4 divisors (see below), whose sum is σ = 1673459102484. Its totient is φ = 557819700826.

The previous prime is 1115639401577. The next prime is 1115639401691. The reversal of 1115639401654 is 4561049365111.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278909850412 + ... + 278909850415.

It is an arithmetic number, because the mean of its divisors is an integer number (418364775621).

Almost surely, 2^{1115639401654} is an apocalyptic number.

1115639401654 is a deficient number, since it is larger than the sum of its proper divisors (557819700830).

1115639401654 is an equidigital number, since it uses as much as digits as its factorization.

1115639401654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557819700829.

The product of its (nonzero) digits is 388800, while the sum is 46.

The spelling of 1115639401654 in words is "one trillion, one hundred fifteen billion, six hundred thirty-nine million, four hundred one thousand, six hundred fifty-four".