1148221328488 has 32 divisors (see below), whose sum is σ = 2419329225600. Its totient is φ = 506907073728.

The previous prime is 1148221328473. The next prime is 1148221328587. The reversal of 1148221328488 is 8848231228411.

It is a super-2 number, since 2×1148221328488² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240010428 + ... + 240015211.

It is an arithmetic number, because the mean of its divisors is an integer number (75604038300).

Almost surely, 2^{1148221328488} is an apocalyptic number.

It is an amenable number.

1148221328488 is an abundant number, since it is smaller than the sum of its proper divisors (1271107897112).

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

1148221328488 is a wasteful number, since it uses less digits than its factorization.

1148221328488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480025681 (or 480025677 counting only the distinct ones).

The product of its digits is 1572864, while the sum is 52.

The spelling of 1148221328488 in words is "one trillion, one hundred forty-eight billion, two hundred twenty-one million, three hundred twenty-eight thousand, four hundred eighty-eight".