726249123112 has 8 divisors (see below), whose sum is σ = 1361717105850. Its totient is φ = 363124561552.

The previous prime is 726249123107. The next prime is 726249123137. The reversal of 726249123112 is 211321942627.

It can be written as a sum of positive squares in only one way, i.e., 722625805476 + 3623317636 = 850074^2 + 60194^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45390570187 + ... + 45390570202.

Almost surely, 2^726249123112 is an apocalyptic number.

It is an amenable number.

726249123112 is a deficient number, since it is larger than the sum of its proper divisors (635467982738).

726249123112 is a wasteful number, since it uses less digits than its factorization.

726249123112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90781140395 (or 90781140391 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The spelling of 726249123112 in words is "seven hundred twenty-six billion, two hundred forty-nine million, one hundred twenty-three thousand, one hundred twelve".