2978137533011 has 4 divisors (see below), whose sum is σ = 2984105745000. Its totient is φ = 2972169321024.

The previous prime is 2978137532999. The next prime is 2978137533013. The reversal of 2978137533011 is 1103357318792.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2978137533011 - 2²² = 2978133338707 is a prime.

It is a super-2 number, since 2×2978137533011² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2978137533013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2984105246 + ... + 2984106243.

It is an arithmetic number, because the mean of its divisors is an integer number (746026436250).

Almost surely, 2^{2978137533011} is an apocalyptic number.

2978137533011 is a deficient number, since it is larger than the sum of its proper divisors (5968211989).

2978137533011 is an equidigital number, since it uses as much as digits as its factorization.

2978137533011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5968211988.

The product of its (nonzero) digits is 952560, while the sum is 50.

The spelling of 2978137533011 in words is "two trillion, nine hundred seventy-eight billion, one hundred thirty-seven million, five hundred thirty-three thousand, eleven".