78332033511421 has 8 divisors (see below), whose sum is σ = 81084106944000. Its totient is φ = 75594037181520.

The previous prime is 78332033511383. The next prime is 78332033511437. The reversal of 78332033511421 is 12411533023387.

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 78332033511421 - 2¹⁵ = 78332033478653 is a prime.

It is a super-2 number, since 2×78332033511421² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78332033514421) 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, 3519264346 + ... + 3519286603.

It is an arithmetic number, because the mean of its divisors is an integer number (10135513368000).

Almost surely, 2^{78332033511421} is an apocalyptic number.

It is an amenable number.

78332033511421 is a deficient number, since it is larger than the sum of its proper divisors (2752073432579).

78332033511421 is a wasteful number, since it uses less digits than its factorization.

78332033511421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7038551339.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 78332033511421 in words is "seventy-eight trillion, three hundred thirty-two billion, thirty-three million, five hundred eleven thousand, four hundred twenty-one".