99725262801906 has 32 divisors (see below), whose sum is σ = 227943785456640. Its totient is φ = 28492891276176.

The previous prime is 99725262801887. The next prime is 99725262801917. The reversal of 99725262801906 is 60910826252799.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39661725 + ... + 42101103.

It is an arithmetic number, because the mean of its divisors is an integer number (7123243295520).

Almost surely, 2^{99725262801906} is an apocalyptic number.

99725262801906 is an abundant number, since it is smaller than the sum of its proper divisors (128218522654734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99725262801906 is a wasteful number, since it uses less digits than its factorization.

99725262801906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3412758.

The product of its (nonzero) digits is 58786560, while the sum is 66.

The spelling of 99725262801906 in words is "ninety-nine trillion, seven hundred twenty-five billion, two hundred sixty-two million, eight hundred one thousand, nine hundred six".