31300729550 has 12 divisors (see below), whose sum is σ = 58219357056. Its totient is φ = 12520291800.

The previous prime is 31300729517. The next prime is 31300729567. The reversal of 31300729550 is 5592700313.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31300729550.

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, 313007246 + ... + 313007345.

It is an arithmetic number, because the mean of its divisors is an integer number (4851613088).

Almost surely, 2^31300729550 is an apocalyptic number.

31300729550 is a deficient number, since it is larger than the sum of its proper divisors (26918627506).

31300729550 is a wasteful number, since it uses less digits than its factorization.

31300729550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626014603 (or 626014598 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 35.

The spelling of 31300729550 in words is "thirty-one billion, three hundred million, seven hundred twenty-nine thousand, five hundred fifty".