11901940853815 has 8 divisors (see below), whose sum is σ = 14282545724640. Its totient is φ = 9521408216352.

The previous prime is 11901940853713. The next prime is 11901940853879. The reversal of 11901940853815 is 51835804910911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11901940853815 - 2¹³ = 11901940845623 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17695179 + ... + 18355468.

It is an arithmetic number, because the mean of its divisors is an integer number (1785318215580).

Almost surely, 2^{11901940853815} is an apocalyptic number.

11901940853815 is a deficient number, since it is larger than the sum of its proper divisors (2380604870825).

11901940853815 is an equidigital number, since it uses as much as digits as its factorization.

11901940853815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36116681.

The product of its (nonzero) digits is 1555200, while the sum is 55.

The spelling of 11901940853815 in words is "eleven trillion, nine hundred one billion, nine hundred forty million, eight hundred fifty-three thousand, eight hundred fifteen".