1131978148626 has 48 divisors (see below), whose sum is σ = 2486031341760. Its totient is φ = 343395299520.

The previous prime is 1131978148603. The next prime is 1131978148661. The reversal of 1131978148626 is 6268418791311.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7789621 + ... + 7933608.

It is an arithmetic number, because the mean of its divisors is an integer number (51792319620).

Almost surely, 2^{1131978148626} is an apocalyptic number.

1131978148626 is an abundant number, since it is smaller than the sum of its proper divisors (1354053193134).

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

1131978148626 is a wasteful number, since it uses less digits than its factorization.

1131978148626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15723331 (or 15723318 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 57.

The spelling of 1131978148626 in words is "one trillion, one hundred thirty-one billion, nine hundred seventy-eight million, one hundred forty-eight thousand, six hundred twenty-six".