78903414387 has 48 divisors (see below), whose sum is σ = 137834278400. Its totient is φ = 45087617736.

The previous prime is 78903414371. The next prime is 78903414407. The reversal of 78903414387 is 78341430987.

It is not a de Polignac number, because 78903414387 - 2⁴ = 78903414371 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (78903414587) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 389983 + ... + 556680.

Almost surely, 2^78903414387 is an apocalyptic number.

78903414387 is a deficient number, since it is larger than the sum of its proper divisors (58930864013).

78903414387 is an frugal number, since it uses more digits than its factorization.

78903414387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946699 (or 946673 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 78903414387 in words is "seventy-eight billion, nine hundred three million, four hundred fourteen thousand, three hundred eighty-seven".