51401441642 has 16 divisors (see below), whose sum is σ = 77425219872. Its totient is φ = 25593191280.

The previous prime is 51401441633. The next prime is 51401441653. The reversal of 51401441642 is 24614410415.

It is a junction number, because it is equal to n+sod(n) for n = 51401441599 and 51401441608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631508 + ... + 708240.

It is an arithmetic number, because the mean of its divisors is an integer number (4839076242).

Almost surely, 2^51401441642 is an apocalyptic number.

51401441642 is a deficient number, since it is larger than the sum of its proper divisors (26023778230).

51401441642 is a wasteful number, since it uses less digits than its factorization.

51401441642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78133.

The product of its (nonzero) digits is 15360, while the sum is 32.

The spelling of 51401441642 in words is "fifty-one billion, four hundred one million, four hundred forty-one thousand, six hundred forty-two".