421754320711772 has 12 divisors (see below), whose sum is σ = 740017475657880. Its totient is φ = 210320756238096.

The previous prime is 421754320711769. The next prime is 421754320711837. The reversal of 421754320711772 is 277117023457124.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139101027743 + ... + 139101030774.

It is an arithmetic number, because the mean of its divisors is an integer number (61668122971490).

Almost surely, 2^{421754320711772} is an apocalyptic number.

It is an amenable number.

421754320711772 is a deficient number, since it is larger than the sum of its proper divisors (318263154946108).

421754320711772 is a wasteful number, since it uses less digits than its factorization.

421754320711772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278202058900 (or 278202058898 counting only the distinct ones).

The product of its (nonzero) digits is 4609920, while the sum is 53.

The spelling of 421754320711772 in words is "four hundred twenty-one trillion, seven hundred fifty-four billion, three hundred twenty million, seven hundred eleven thousand, seven hundred seventy-two".