1954973856 has 48 divisors (see below), whose sum is σ = 5598337248. Its totient is φ = 592416000.

The previous prime is 1954973843. The next prime is 1954973903. The reversal of 1954973856 is 6583794591.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 1954973796 and 1954973805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 924595 + ... + 926706.

It is an arithmetic number, because the mean of its divisors is an integer number (116632026).

Almost surely, 2^1954973856 is an apocalyptic number.

1954973856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1954973856 is an abundant number, since it is smaller than the sum of its proper divisors (3643363392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1954973856 is a wasteful number, since it uses less digits than its factorization.

1954973856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851325 (or 1851317 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 57.

The square root of 1954973856 is about 44215.0862941598. The cubic root of 1954973856 is about 1250.3942982234.

The spelling of 1954973856 in words is "one billion, nine hundred fifty-four million, nine hundred seventy-three thousand, eight hundred fifty-six".