78463015613534 has 64 divisors (see below), whose sum is σ = 127121858265600. Its totient is φ = 36229258931712.

The previous prime is 78463015613497. The next prime is 78463015613573. The reversal of 78463015613534 is 43531651036487.

It is a self number, because there is not a number n which added to its sum of digits gives 78463015613534.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 542665202 + ... + 542809770.

It is an arithmetic number, because the mean of its divisors is an integer number (1986279035400).

Almost surely, 2^{78463015613534} is an apocalyptic number.

78463015613534 is a deficient number, since it is larger than the sum of its proper divisors (48658842652066).

78463015613534 is a wasteful number, since it uses less digits than its factorization.

78463015613534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147809.

The product of its (nonzero) digits is 21772800, while the sum is 56.

The spelling of 78463015613534 in words is "seventy-eight trillion, four hundred sixty-three billion, fifteen million, six hundred thirteen thousand, five hundred thirty-four".