31064407650 has 144 divisors (see below), whose sum is σ = 85021522560. Its totient is φ = 8130096000.

The previous prime is 31064407643. The next prime is 31064407657. The reversal of 31064407650 is 5670446013.

It is a happy number.

31064407650 is a `hidden beast` number, since 3 + 1 + 0 + 644 + 0 + 7 + 6 + 5 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (31064407643) and next prime (31064407657).

It is not an unprimeable number, because it can be changed into a prime (31064407657) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6147625 + ... + 6152675.

It is an arithmetic number, because the mean of its divisors is an integer number (590427240).

Almost surely, 2^31064407650 is an apocalyptic number.

31064407650 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 31064407650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42510761280).

31064407650 is an abundant number, since it is smaller than the sum of its proper divisors (53957114910).

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

31064407650 is a wasteful number, since it uses less digits than its factorization.

31064407650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5321 (or 5313 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 31064407650 in words is "thirty-one billion, sixty-four million, four hundred seven thousand, six hundred fifty".