42015341551 has 4 divisors (see below), whose sum is σ = 42704117704. Its totient is φ = 41326565400.

The previous prime is 42015341513. The next prime is 42015341587. The reversal of 42015341551 is 15514351024.

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

It is a cyclic number.

It is not a de Polignac number, because 42015341551 - 2¹³ = 42015333359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42015341591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344387985 + ... + 344388106.

It is an arithmetic number, because the mean of its divisors is an integer number (10676029426).

Almost surely, 2^42015341551 is an apocalyptic number.

42015341551 is a deficient number, since it is larger than the sum of its proper divisors (688776153).

42015341551 is an equidigital number, since it uses as much as digits as its factorization.

42015341551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688776152.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 42015341551 its reverse (15514351024), we get a palindrome (57529692575).

The spelling of 42015341551 in words is "forty-two billion, fifteen million, three hundred forty-one thousand, five hundred fifty-one".