31374149850 has 192 divisors, whose sum is σ = 89959956480. Its totient is φ = 8031441600.

The previous prime is 31374149839. The next prime is 31374149903. The reversal of 31374149850 is 5894147313.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 31374149796 and 31374149805.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 5311999 + ... + 5317901.

It is an arithmetic number, because the mean of its divisors is an integer number (468541440).

Almost surely, 2^31374149850 is an apocalyptic number.

31374149850 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 31374149850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44979978240).

31374149850 is an abundant number, since it is smaller than the sum of its proper divisors (58585806630).

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

31374149850 is a wasteful number, since it uses less digits than its factorization.

31374149850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6082 (or 6071 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 31374149850 in words is "thirty-one billion, three hundred seventy-four million, one hundred forty-nine thousand, eight hundred fifty".