51778793354 has 8 divisors (see below), whose sum is σ = 77671345440. Its totient is φ = 25888344876.

The previous prime is 51778793351. The next prime is 51778793371. The reversal of 51778793354 is 45339787715.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 51778793293 and 51778793302.

It is not an unprimeable number, because it can be changed into a prime (51778793351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462854 + ... + 563729.

It is an arithmetic number, because the mean of its divisors is an integer number (9708918180).

Almost surely, 2^51778793354 is an apocalyptic number.

51778793354 is a deficient number, since it is larger than the sum of its proper divisors (25892552086).

51778793354 is a wasteful number, since it uses less digits than its factorization.

51778793354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051804.

The product of its digits is 22226400, while the sum is 59.

The spelling of 51778793354 in words is "fifty-one billion, seven hundred seventy-eight million, seven hundred ninety-three thousand, three hundred fifty-four".