1953278113798 has 8 divisors (see below), whose sum is σ = 3196273277160. Its totient is φ = 887853688080.

The previous prime is 1953278113783. The next prime is 1953278113817. The reversal of 1953278113798 is 8973118723591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44392684383 + ... + 44392684426.

It is an arithmetic number, because the mean of its divisors is an integer number (399534159645).

Almost surely, 2^{1953278113798} is an apocalyptic number.

1953278113798 is a deficient number, since it is larger than the sum of its proper divisors (1242995163362).

1953278113798 is a wasteful number, since it uses less digits than its factorization.

1953278113798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88785368822.

The product of its digits is 22861440, while the sum is 64.

The spelling of 1953278113798 in words is "one trillion, nine hundred fifty-three billion, two hundred seventy-eight million, one hundred thirteen thousand, seven hundred ninety-eight".