99946387351 has 4 divisors (see below), whose sum is σ = 99965788272. Its totient is φ = 99926986432.

The previous prime is 99946387349. The next prime is 99946387357. The reversal of 99946387351 is 15378364999.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99946387351 - 2¹ = 99946387349 is a prime.

It is a super-2 number, since 2×99946387351² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99946387357) 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, 9692731 + ... + 9703036.

It is an arithmetic number, because the mean of its divisors is an integer number (24991447068).

Almost surely, 2^99946387351 is an apocalyptic number.

99946387351 is a deficient number, since it is larger than the sum of its proper divisors (19400921).

99946387351 is a wasteful number, since it uses less digits than its factorization.

99946387351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19400920.

The product of its digits is 44089920, while the sum is 64.

The spelling of 99946387351 in words is "ninety-nine billion, nine hundred forty-six million, three hundred eighty-seven thousand, three hundred fifty-one".