51963192378 has 24 divisors (see below), whose sum is σ = 118512544800. Its totient is φ = 16409429064.

The previous prime is 51963192373. The next prime is 51963192431. The reversal of 51963192378 is 87329136915.

51963192378 is a `hidden beast` number, since 5 + 1 + 96 + 319 + 237 + 8 = 666.

51963192378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51963192378² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51963192373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75969238 + ... + 75969921.

It is an arithmetic number, because the mean of its divisors is an integer number (4938022700).

Almost surely, 2^51963192378 is an apocalyptic number.

51963192378 is an abundant number, since it is smaller than the sum of its proper divisors (66549352422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51963192378 is a wasteful number, since it uses less digits than its factorization.

51963192378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151939186 (or 151939183 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The spelling of 51963192378 in words is "fifty-one billion, nine hundred sixty-three million, one hundred ninety-two thousand, three hundred seventy-eight".