47787739378 has 16 divisors (see below), whose sum is σ = 74167416000. Its totient is φ = 23065579152.

The previous prime is 47787739357. The next prime is 47787739421. The reversal of 47787739378 is 87393778774.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242593 + ... + 392971.

It is an arithmetic number, because the mean of its divisors is an integer number (4635463500).

Almost surely, 2^47787739378 is an apocalyptic number.

47787739378 is a deficient number, since it is larger than the sum of its proper divisors (26379676622).

47787739378 is a wasteful number, since it uses less digits than its factorization.

47787739378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155889.

The product of its digits is 348509952, while the sum is 70.

The spelling of 47787739378 in words is "forty-seven billion, seven hundred eighty-seven million, seven hundred thirty-nine thousand, three hundred seventy-eight".