78351090943422 has 64 divisors (see below), whose sum is σ = 177037078192128. Its totient is φ = 22902016140000.

The previous prime is 78351090943417. The next prime is 78351090943441. The reversal of 78351090943422 is 22434909015387.

It is a super-2 number, since 2×78351090943422² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61741204 + ... + 62997447.

It is an arithmetic number, because the mean of its divisors is an integer number (2766204346752).

Almost surely, 2^{78351090943422} is an apocalyptic number.

78351090943422 is an abundant number, since it is smaller than the sum of its proper divisors (98685987248706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78351090943422 is a wasteful number, since it uses less digits than its factorization.

78351090943422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124739005.

The product of its (nonzero) digits is 13063680, while the sum is 57.

The spelling of 78351090943422 in words is "seventy-eight trillion, three hundred fifty-one billion, ninety million, nine hundred forty-three thousand, four hundred twenty-two".