542346521251 has 2 divisors, whose sum is σ = 542346521252. Its totient is φ = 542346521250.

The previous prime is 542346521207. The next prime is 542346521341. The reversal of 542346521251 is 152125643245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 542346521251 - 2⁹ = 542346520739 is a prime.

It is a super-2 number, since 2×542346521251² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (542346521051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271173260625 + 271173260626.

It is an arithmetic number, because the mean of its divisors is an integer number (271173260626).

Almost surely, 2^542346521251 is an apocalyptic number.

542346521251 is a deficient number, since it is larger than the sum of its proper divisors (1).

542346521251 is an equidigital number, since it uses as much as digits as its factorization.

542346521251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288000, while the sum is 40.

The spelling of 542346521251 in words is "five hundred forty-two billion, three hundred forty-six million, five hundred twenty-one thousand, two hundred fifty-one".