99780154037 has 4 divisors (see below), whose sum is σ = 99885519456. Its totient is φ = 99674788620.

The previous prime is 99780154031. The next prime is 99780154039. The reversal of 99780154037 is 73045108799.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99780154037 - 2¹⁶ = 99780088501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99780154037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99780154031) 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, 52681289 + ... + 52683182.

It is an arithmetic number, because the mean of its divisors is an integer number (24971379864).

Almost surely, 2^99780154037 is an apocalyptic number.

It is an amenable number.

99780154037 is a deficient number, since it is larger than the sum of its proper divisors (105365419).

99780154037 is a wasteful number, since it uses less digits than its factorization.

99780154037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105365418.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The spelling of 99780154037 in words is "ninety-nine billion, seven hundred eighty million, one hundred fifty-four thousand, thirty-seven".