42077253293 has 4 divisors (see below), whose sum is σ = 42089139708. Its totient is φ = 42065366880.

The previous prime is 42077253287. The next prime is 42077253329. The reversal of 42077253293 is 39235277024.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5058338884 + 37018914409 = 71122^2 + 192403^2 .

It is a cyclic number.

It is not a de Polignac number, because 42077253293 - 2⁸ = 42077253037 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 (42077253233) 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, 5937896 + ... + 5944977.

It is an arithmetic number, because the mean of its divisors is an integer number (10522284927).

Almost surely, 2^42077253293 is an apocalyptic number.

It is an amenable number.

42077253293 is a deficient number, since it is larger than the sum of its proper divisors (11886415).

42077253293 is a wasteful number, since it uses less digits than its factorization.

42077253293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11886414.

The product of its (nonzero) digits is 635040, while the sum is 44.

The spelling of 42077253293 in words is "forty-two billion, seventy-seven million, two hundred fifty-three thousand, two hundred ninety-three".