11690537958 has 48 divisors (see below), whose sum is σ = 27696494592. Its totient is φ = 3534342000.

The previous prime is 11690537921. The next prime is 11690537983. The reversal of 11690537958 is 85973509611.

11690537958 is a `hidden beast` number, since 1 + 16 + 9 + 0 + 537 + 95 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16843 + ... + 153833.

It is an arithmetic number, because the mean of its divisors is an integer number (577010304).

Almost surely, 2^11690537958 is an apocalyptic number.

11690537958 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11690537958, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13848247296).

11690537958 is an abundant number, since it is smaller than the sum of its proper divisors (16005956634).

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

11690537958 is a wasteful number, since it uses less digits than its factorization.

11690537958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137441 (or 137438 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 54.

The spelling of 11690537958 in words is "eleven billion, six hundred ninety million, five hundred thirty-seven thousand, nine hundred fifty-eight".