31900601088 has 288 divisors, whose sum is σ = 101628334080. Its totient is φ = 9841582080.

The previous prime is 31900601077. The next prime is 31900601101. The reversal of 31900601088 is 88010600913.

It is a tau number, because it is divible by the number of its divisors (288).

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4925020 + ... + 4931492.

It is an arithmetic number, because the mean of its divisors is an integer number (352876160).

Almost surely, 2^31900601088 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 31900601088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50814167040).

31900601088 is an abundant number, since it is smaller than the sum of its proper divisors (69727732992).

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

31900601088 is a wasteful number, since it uses less digits than its factorization.

31900601088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6552 (or 6532 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The spelling of 31900601088 in words is "thirty-one billion, nine hundred million, six hundred one thousand, eighty-eight".