1227396699048 has 256 divisors, whose sum is σ = 3402827366400. Its totient is φ = 366573219840.

The previous prime is 1227396699047. The next prime is 1227396699101. The reversal of 1227396699048 is 8409966937221.

It is a self number, because there is not a number n which added to its sum of digits gives 1227396699048.

It is not an unprimeable number, because it can be changed into a prime (1227396699043) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1660888263 + ... + 1660889001.

It is an arithmetic number, because the mean of its divisors is an integer number (13292294400).

Almost surely, 2^{1227396699048} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1227396699048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1701413683200).

1227396699048 is an abundant number, since it is smaller than the sum of its proper divisors (2175430667352).

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

1227396699048 is a wasteful number, since it uses less digits than its factorization.

1227396699048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592 (or 1588 counting only the distinct ones).

The product of its (nonzero) digits is 70543872, while the sum is 66.

The spelling of 1227396699048 in words is "one trillion, two hundred twenty-seven billion, three hundred ninety-six million, six hundred ninety-nine thousand, forty-eight".