99140778453 has 8 divisors (see below), whose sum is σ = 132189181600. Its totient is φ = 66093113808.

The previous prime is 99140778427. The next prime is 99140778479. The reversal of 99140778453 is 35487704199.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (99140778427) and next prime (99140778479).

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

It is not a de Polignac number, because 99140778453 - 2⁸ = 99140778197 is a prime.

It is a super-3 number, since 3×99140778453³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99140778393 and 99140778402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99140778403) 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 7 ways as a sum of consecutive naturals, for example, 348738 + ... + 565596.

It is an arithmetic number, because the mean of its divisors is an integer number (16523647700).

Almost surely, 2^99140778453 is an apocalyptic number.

It is an amenable number.

99140778453 is a deficient number, since it is larger than the sum of its proper divisors (33048403147).

99140778453 is a wasteful number, since it uses less digits than its factorization.

99140778453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369251.

The product of its (nonzero) digits is 7620480, while the sum is 57.

The spelling of 99140778453 in words is "ninety-nine billion, one hundred forty million, seven hundred seventy-eight thousand, four hundred fifty-three".