11654172542 has 8 divisors (see below), whose sum is σ = 18241313616. Its totient is φ = 5573734672.

The previous prime is 11654172529. The next prime is 11654172553. The reversal of 11654172542 is 24527145611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 11654172496 and 11654172505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126675743 + ... + 126675834.

It is an arithmetic number, because the mean of its divisors is an integer number (2280164202).

Almost surely, 2^11654172542 is an apocalyptic number.

11654172542 is a deficient number, since it is larger than the sum of its proper divisors (6587141074).

11654172542 is a wasteful number, since it uses less digits than its factorization.

11654172542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253351602.

The product of its digits is 67200, while the sum is 38.

The spelling of 11654172542 in words is "eleven billion, six hundred fifty-four million, one hundred seventy-two thousand, five hundred forty-two".