11512535015450 has 192 divisors, whose sum is σ = 26969773824000. Its totient is φ = 3566960167680.

The previous prime is 11512535015419. The next prime is 11512535015489. The reversal of 11512535015450 is 5451053521511.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15646931 + ... + 16366169.

It is an arithmetic number, because the mean of its divisors is an integer number (140467572000).

Almost surely, 2^{11512535015450} is an apocalyptic number.

11512535015450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11512535015450 is an abundant number, since it is smaller than the sum of its proper divisors (15457238808550).

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

11512535015450 is a wasteful number, since it uses less digits than its factorization.

11512535015450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719389 (or 719384 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 38.

Adding to 11512535015450 its reverse (5451053521511), we get a palindrome (16963588536961).

The spelling of 11512535015450 in words is "eleven trillion, five hundred twelve billion, five hundred thirty-five million, fifteen thousand, four hundred fifty".