78414902254 has 16 divisors (see below), whose sum is σ = 129616047792. Its totient is φ = 35349830208.

The previous prime is 78414902243. The next prime is 78414902303. The reversal of 78414902254 is 45220941487.

It is a super-2 number, since 2×78414902254² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35068159 + ... + 35070394.

It is an arithmetic number, because the mean of its divisors is an integer number (8101002987).

Almost surely, 2^78414902254 is an apocalyptic number.

78414902254 is a deficient number, since it is larger than the sum of its proper divisors (51201145538).

78414902254 is a wasteful number, since it uses less digits than its factorization.

78414902254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70138611.

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 78414902254 in words is "seventy-eight billion, four hundred fourteen million, nine hundred two thousand, two hundred fifty-four".