642041546654 has 16 divisors (see below), whose sum is σ = 994148416896. Its totient is φ = 310659148800.

The previous prime is 642041546591. The next prime is 642041546717. The reversal of 642041546654 is 456645140246.

It is an interprime number because it is at equal distance from previous prime (642041546591) and next prime (642041546717).

It is a junction number, because it is equal to n+sod(n) for n = 642041546599 and 642041546608.

It is a congruent number.

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, 5904134 + ... + 6011894.

It is an arithmetic number, because the mean of its divisors is an integer number (62134276056).

Almost surely, 2^642041546654 is an apocalyptic number.

642041546654 is a deficient number, since it is larger than the sum of its proper divisors (352106870242).

642041546654 is a wasteful number, since it uses less digits than its factorization.

642041546654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203891.

The product of its (nonzero) digits is 2764800, while the sum is 47.

The spelling of 642041546654 in words is "six hundred forty-two billion, forty-one million, five hundred forty-six thousand, six hundred fifty-four".