42142403437 has 2 divisors, whose sum is σ = 42142403438. Its totient is φ = 42142403436.

The previous prime is 42142403383. The next prime is 42142403441. The reversal of 42142403437 is 73430424124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32469877636 + 9672525801 = 180194^2 + 98349^2 .

It is a cyclic number.

It is not a de Polignac number, because 42142403437 - 2²³ = 42134014829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42142403447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21071201718 + 21071201719.

It is an arithmetic number, because the mean of its divisors is an integer number (21071201719).

Almost surely, 2^42142403437 is an apocalyptic number.

It is an amenable number.

42142403437 is a deficient number, since it is larger than the sum of its proper divisors (1).

42142403437 is an equidigital number, since it uses as much as digits as its factorization.

42142403437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 34.

The spelling of 42142403437 in words is "forty-two billion, one hundred forty-two million, four hundred three thousand, four hundred thirty-seven".