787419723421 has 8 divisors (see below), whose sum is σ = 787780201824. Its totient is φ = 787059326160.

The previous prime is 787419723371. The next prime is 787419723449. The reversal of 787419723421 is 124327914787.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 787419723421 - 2¹⁵ = 787419690653 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 (787419723521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27023166 + ... + 27052288.

It is an arithmetic number, because the mean of its divisors is an integer number (98472525228).

Almost surely, 2^787419723421 is an apocalyptic number.

It is an amenable number.

787419723421 is a deficient number, since it is larger than the sum of its proper divisors (360478403).

787419723421 is a wasteful number, since it uses less digits than its factorization.

787419723421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40571.

The product of its digits is 4741632, while the sum is 55.

The spelling of 787419723421 in words is "seven hundred eighty-seven billion, four hundred nineteen million, seven hundred twenty-three thousand, four hundred twenty-one".