51343253774354 has 4 divisors (see below), whose sum is σ = 77014880661534. Its totient is φ = 25671626887176.

The previous prime is 51343253774353. The next prime is 51343253774363. The reversal of 51343253774354 is 45347735234315.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 44949046404025 + 6394207370329 = 6704405^2 + 2528677^2 .

It is a super-2 number, since 2×51343253774354² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51343253774354.

It is not an unprimeable number, because it can be changed into a prime (51343253774353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12835813443587 + ... + 12835813443590.

Almost surely, 2^{51343253774354} is an apocalyptic number.

51343253774354 is a deficient number, since it is larger than the sum of its proper divisors (25671626887180).

51343253774354 is a wasteful number, since it uses less digits than its factorization.

51343253774354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25671626887179.

The product of its digits is 63504000, while the sum is 56.

The spelling of 51343253774354 in words is "fifty-one trillion, three hundred forty-three billion, two hundred fifty-three million, seven hundred seventy-four thousand, three hundred fifty-four".