1953849057998 has 16 divisors (see below), whose sum is σ = 3055514725296. Its totient is φ = 936201477120.

The previous prime is 1953849057983. The next prime is 1953849058009. The reversal of 1953849057998 is 8997509483591.

It is a super-2 number, since 2×1953849057998² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214327283 + ... + 214336398.

It is an arithmetic number, because the mean of its divisors is an integer number (190969670331).

Almost surely, 2^{1953849057998} is an apocalyptic number.

1953849057998 is a deficient number, since it is larger than the sum of its proper divisors (1101665667298).

1953849057998 is a wasteful number, since it uses less digits than its factorization.

1953849057998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428663779.

The product of its (nonzero) digits is 881798400, while the sum is 77.

The spelling of 1953849057998 in words is "one trillion, nine hundred fifty-three billion, eight hundred forty-nine million, fifty-seven thousand, nine hundred ninety-eight".