542421316515 has 32 divisors (see below), whose sum is σ = 948583431936. Its totient is φ = 263052535680.

The previous prime is 542421316511. The next prime is 542421316543. The reversal of 542421316515 is 515613124245.

It is not a de Polignac number, because 542421316515 - 2² = 542421316511 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (542421316511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20745501 + ... + 20771630.

It is an arithmetic number, because the mean of its divisors is an integer number (29643232248).

Almost surely, 2^542421316515 is an apocalyptic number.

542421316515 is a deficient number, since it is larger than the sum of its proper divisors (406162115421).

542421316515 is a wasteful number, since it uses less digits than its factorization.

542421316515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41517219.

The product of its digits is 144000, while the sum is 39.

The spelling of 542421316515 in words is "five hundred forty-two billion, four hundred twenty-one million, three hundred sixteen thousand, five hundred fifteen".