51093761146 has 4 divisors (see below), whose sum is σ = 76640641722. Its totient is φ = 25546880572.

The previous prime is 51093761143. The next prime is 51093761153. The reversal of 51093761146 is 64116739015.

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., 50305555521 + 788205625 = 224289^2 + 28075^2 .

It is a super-2 number, since 2×51093761146² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51093761143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12773440285 + ... + 12773440288.

Almost surely, 2^51093761146 is an apocalyptic number.

51093761146 is a deficient number, since it is larger than the sum of its proper divisors (25546880576).

51093761146 is a wasteful number, since it uses less digits than its factorization.

51093761146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25546880575.

The product of its (nonzero) digits is 136080, while the sum is 43.

The spelling of 51093761146 in words is "fifty-one billion, ninety-three million, seven hundred sixty-one thousand, one hundred forty-six".