78148540411 has 4 divisors (see below), whose sum is σ = 78225687072. Its totient is φ = 78071393752.

The previous prime is 78148540399. The next prime is 78148540417. The reversal of 78148540411 is 11404584187.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78148540411 - 2⁹ = 78148539899 is a prime.

It is a super-2 number, since 2×78148540411² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78148540417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38571811 + ... + 38573836.

It is an arithmetic number, because the mean of its divisors is an integer number (19556421768).

Almost surely, 2^78148540411 is an apocalyptic number.

78148540411 is a deficient number, since it is larger than the sum of its proper divisors (77146661).

78148540411 is a wasteful number, since it uses less digits than its factorization.

78148540411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77146660.

The product of its (nonzero) digits is 143360, while the sum is 43.

The spelling of 78148540411 in words is "seventy-eight billion, one hundred forty-eight million, five hundred forty thousand, four hundred eleven".