149278803278 has 12 divisors (see below), whose sum is σ = 246124969440. Its totient is φ = 67854001380.

The previous prime is 149278803269. The next prime is 149278803313. The reversal of 149278803278 is 872308872941.

It is a super-2 number, since 2×149278803278² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 308427038 + ... + 308427521.

It is an arithmetic number, because the mean of its divisors is an integer number (20510414120).

Almost surely, 2^149278803278 is an apocalyptic number.

149278803278 is a deficient number, since it is larger than the sum of its proper divisors (96846166162).

149278803278 is a wasteful number, since it uses less digits than its factorization.

149278803278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616854583 (or 616854572 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 59.

The spelling of 149278803278 in words is "one hundred forty-nine billion, two hundred seventy-eight million, eight hundred three thousand, two hundred seventy-eight".