31426503650 has 24 divisors (see below), whose sum is σ = 59254033764. Its totient is φ = 12398400000.

The previous prime is 31426503607. The next prime is 31426503659. The reversal of 31426503650 is 5630562413.

It can be written as a sum of positive squares in 6 ways, for example, as 14594814481 + 16831689169 = 120809^2 + 129737^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31426503650.

It is not an unprimeable number, because it can be changed into a prime (31426503659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4301351 + ... + 4308650.

Almost surely, 2^31426503650 is an apocalyptic number.

31426503650 is a deficient number, since it is larger than the sum of its proper divisors (27827530114).

31426503650 is a wasteful number, since it uses less digits than its factorization.

31426503650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8610086 (or 8610081 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 31426503650 in words is "thirty-one billion, four hundred twenty-six million, five hundred three thousand, six hundred fifty".