42049649051 has 2 divisors, whose sum is σ = 42049649052. Its totient is φ = 42049649050.

The previous prime is 42049649029. The next prime is 42049649069. The reversal of 42049649051 is 15094694024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42049649051 - 2³⁰ = 40975907227 is a prime.

It is a super-3 number, since 3×42049649051³ (a number of 33 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 42049648993 and 42049649011.

It is not a weakly prime, because it can be changed into another prime (42049640051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21024824525 + 21024824526.

It is an arithmetic number, because the mean of its divisors is an integer number (21024824526).

Almost surely, 2^42049649051 is an apocalyptic number.

42049649051 is a deficient number, since it is larger than the sum of its proper divisors (1).

42049649051 is an equidigital number, since it uses as much as digits as its factorization.

42049649051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 42049649051 in words is "forty-two billion, forty-nine million, six hundred forty-nine thousand, fifty-one".