51419661601 has 36 divisors (see below), whose sum is σ = 69207252240. Its totient is φ = 37958382000.

The previous prime is 51419661599. The next prime is 51419661607. The reversal of 51419661601 is 10616691415.

It is not a de Polignac number, because 51419661601 - 2¹ = 51419661599 is a prime.

It is a super-2 number, since 2×51419661601² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51419661607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 115575 + ... + 340876.

Almost surely, 2^51419661601 is an apocalyptic number.

It is an amenable number.

51419661601 is a deficient number, since it is larger than the sum of its proper divisors (17787590639).

51419661601 is a wasteful number, since it uses less digits than its factorization.

51419661601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456506 (or 456488 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The spelling of 51419661601 in words is "fifty-one billion, four hundred nineteen million, six hundred sixty-one thousand, six hundred one".