54157444121 has 8 divisors (see below), whose sum is σ = 59603688864. Its totient is φ = 48798339520.

The previous prime is 54157444097. The next prime is 54157444139. The reversal of 54157444121 is 12144475145.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54157444121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54157404121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21783731 + ... + 21786216.

It is an arithmetic number, because the mean of its divisors is an integer number (7450461108).

Almost surely, 2^54157444121 is an apocalyptic number.

It is an amenable number.

54157444121 is a deficient number, since it is larger than the sum of its proper divisors (5446244743).

54157444121 is a wasteful number, since it uses less digits than its factorization.

54157444121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43570071.

The product of its digits is 89600, while the sum is 38.

The spelling of 54157444121 in words is "fifty-four billion, one hundred fifty-seven million, four hundred forty-four thousand, one hundred twenty-one".