42698290421 has 4 divisors (see below), whose sum is σ = 42809774592. Its totient is φ = 42586806252.

The previous prime is 42698290409. The next prime is 42698290471. The reversal of 42698290421 is 12409289624.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42698290421 - 2¹⁴ = 42698274037 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 (42698290471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55741511 + ... + 55742276.

It is an arithmetic number, because the mean of its divisors is an integer number (10702443648).

Almost surely, 2^42698290421 is an apocalyptic number.

It is an amenable number.

42698290421 is a deficient number, since it is larger than the sum of its proper divisors (111484171).

42698290421 is a wasteful number, since it uses less digits than its factorization.

42698290421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111484170.

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 42698290421 in words is "forty-two billion, six hundred ninety-eight million, two hundred ninety thousand, four hundred twenty-one".