99267871951 has 4 divisors (see below), whose sum is σ = 99268540312. Its totient is φ = 99267203592.

The previous prime is 99267871933. The next prime is 99267871961. The reversal of 99267871951 is 15917876299.

99267871951 is a nontrivial binomial coefficient, being equal to C(445574, 2).

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a 3-Lehmer number, since φ(99267871951) divides (99267871951-1)³.

It is a cyclic number.

It is not a de Polignac number, because 99267871951 - 2¹¹ = 99267869903 is a prime.

It is a super-2 number, since 2×99267871951² (a number of 23 digits) contains 22 as substring.

It is a deceptive number, since it divides R_99267871950.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99267871961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1 + ... + 445573.

It is an arithmetic number, because the mean of its divisors is an integer number (24817135078).

Almost surely, 2^99267871951 is an apocalyptic number.

99267871951 is the 445573-rd triangular number and also the 222787-th hexagonal number.

99267871951 is the 148525-th centered nonagonal number.

99267871951 is a deficient number, since it is larger than the sum of its proper divisors (668361).

99267871951 is a wasteful number, since it uses less digits than its factorization.

99267871951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668360.

The product of its digits is 17146080, while the sum is 64.

The spelling of 99267871951 in words is "ninety-nine billion, two hundred sixty-seven million, eight hundred seventy-one thousand, nine hundred fifty-one".