51846435949 has 32 divisors (see below), whose sum is σ = 65333790720. Its totient is φ = 39966696000.

The previous prime is 51846435947. The next prime is 51846435983. The reversal of 51846435949 is 94953464815.

It is not a de Polignac number, because 51846435949 - 2¹ = 51846435947 is a prime.

It is a super-2 number, since 2×51846435949² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51846435893 and 51846435902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51846435947) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13864522 + ... + 13868260.

It is an arithmetic number, because the mean of its divisors is an integer number (2041680960).

Almost surely, 2^51846435949 is an apocalyptic number.

It is an amenable number.

51846435949 is a deficient number, since it is larger than the sum of its proper divisors (13487354771).

51846435949 is a wasteful number, since it uses less digits than its factorization.

51846435949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5641.

The product of its digits is 18662400, while the sum is 58.

The spelling of 51846435949 in words is "fifty-one billion, eight hundred forty-six million, four hundred thirty-five thousand, nine hundred forty-nine".