31361154048 has 352 divisors, whose sum is σ = 108343616000. Its totient is φ = 8957620224.

The previous prime is 31361154043. The next prime is 31361154091. The reversal of 31361154048 is 84045116313.

31361154048 is a `hidden beast` number, since 3 + 13 + 61 + 1 + 540 + 48 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31361154043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9481611 + ... + 9484917.

Almost surely, 2^31361154048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31361154048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54171808000).

31361154048 is an abundant number, since it is smaller than the sum of its proper divisors (76982461952).

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

31361154048 is an equidigital number, since it uses as much as digits as its factorization.

31361154048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3357 (or 3319 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 31361154048 in words is "thirty-one billion, three hundred sixty-one million, one hundred fifty-four thousand, forty-eight".