1654404634942 has 16 divisors (see below), whose sum is σ = 2565497298672. Its totient is φ = 799635513600.

The previous prime is 1654404634931. The next prime is 1654404634991. The reversal of 1654404634942 is 2494364044561.

It is a super-2 number, since 2×1654404634942² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1654404634942.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 99152809 + ... + 99169492.

It is an arithmetic number, because the mean of its divisors is an integer number (160343581167).

Almost surely, 2^{1654404634942} is an apocalyptic number.

1654404634942 is a deficient number, since it is larger than the sum of its proper divisors (911092663730).

1654404634942 is a wasteful number, since it uses less digits than its factorization.

1654404634942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198322443.

The product of its (nonzero) digits is 9953280, while the sum is 52.

The spelling of 1654404634942 in words is "one trillion, six hundred fifty-four billion, four hundred four million, six hundred thirty-four thousand, nine hundred forty-two".