51004738333378 has 16 divisors (see below), whose sum is σ = 77316885981720. Its totient is φ = 25232586172416.

The previous prime is 51004738333349. The next prime is 51004738333379. The reversal of 51004738333378 is 87333383740015.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12315305806489 + 38689432526889 = 3509317^2 + 6220083^2 .

It is not an unprimeable number, because it can be changed into a prime (51004738333379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35077123 + ... + 36502246.

Almost surely, 2^{51004738333378} is an apocalyptic number.

51004738333378 is a deficient number, since it is larger than the sum of its proper divisors (26312147648342).

51004738333378 is a wasteful number, since it uses less digits than its factorization.

51004738333378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71583141.

The product of its (nonzero) digits is 15240960, while the sum is 55.

The spelling of 51004738333378 in words is "fifty-one trillion, four billion, seven hundred thirty-eight million, three hundred thirty-three thousand, three hundred seventy-eight".