31402141650 has 144 divisors (see below), whose sum is σ = 92160851328. Its totient is φ = 7602384000.

The previous prime is 31402141649. The next prime is 31402141669. The reversal of 31402141650 is 5614120413.

It is a happy number.

31402141650 is a `hidden beast` number, since 3 + 1 + 4 + 0 + 2 + 1 + 4 + 1 + 650 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4060087 + ... + 4067813.

It is an arithmetic number, because the mean of its divisors is an integer number (640005912).

Almost surely, 2^31402141650 is an apocalyptic number.

31402141650 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31402141650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46080425664).

31402141650 is an abundant number, since it is smaller than the sum of its proper divisors (60758709678).

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

31402141650 is a wasteful number, since it uses less digits than its factorization.

31402141650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8577 (or 8569 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The spelling of 31402141650 in words is "thirty-one billion, four hundred two million, one hundred forty-one thousand, six hundred fifty".