1993098951 has 24 divisors (see below), whose sum is σ = 2910070800. Its totient is φ = 1314393216.

The previous prime is 1993098937. The next prime is 1993098983. The reversal of 1993098951 is 1598903991.

It is not a de Polignac number, because 1993098951 - 2¹⁰ = 1993097927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1993098901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1009201 + ... + 1011173.

It is an arithmetic number, because the mean of its divisors is an integer number (121252950).

Almost surely, 2^1993098951 is an apocalyptic number.

1993098951 is a deficient number, since it is larger than the sum of its proper divisors (916971849).

1993098951 is a wasteful number, since it uses less digits than its factorization.

1993098951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3135 (or 3132 counting only the distinct ones).

The product of its (nonzero) digits is 787320, while the sum is 54.

The square root of 1993098951 is about 44644.1368042882. The cubic root of 1993098951 is about 1258.4702504566.

The spelling of 1993098951 in words is "one billion, nine hundred ninety-three million, ninety-eight thousand, nine hundred fifty-one".