421111155739 has 4 divisors (see below), whose sum is σ = 423227292400. Its totient is φ = 418995019080.

The previous prime is 421111155721. The next prime is 421111155821. The reversal of 421111155739 is 937551111124.

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 421111155739 - 2⁷ = 421111155611 is a prime.

It is a super-2 number, since 2×421111155739² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421111155139) 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, 1058068032 + ... + 1058068429.

It is an arithmetic number, because the mean of its divisors is an integer number (105806823100).

Almost surely, 2^421111155739 is an apocalyptic number.

421111155739 is a deficient number, since it is larger than the sum of its proper divisors (2116136661).

421111155739 is a wasteful number, since it uses less digits than its factorization.

421111155739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116136660.

The product of its digits is 37800, while the sum is 40.

The spelling of 421111155739 in words is "four hundred twenty-one billion, one hundred eleven million, one hundred fifty-five thousand, seven hundred thirty-nine".