2011494771748 has 48 divisors (see below), whose sum is σ = 4388888448000. Its totient is φ = 783668443680.

The previous prime is 2011494771743. The next prime is 2011494771761. The reversal of 2011494771748 is 8471774941102.

It is a super-2 number, since 2×2011494771748² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2011494771743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8700553 + ... + 8928751.

It is an arithmetic number, because the mean of its divisors is an integer number (91435176000).

Almost surely, 2^{2011494771748} is an apocalyptic number.

2011494771748 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2011494771748 is an abundant number, since it is smaller than the sum of its proper divisors (2377393676252).

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

2011494771748 is a wasteful number, since it uses less digits than its factorization.

2011494771748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256840 (or 256838 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 55.

The spelling of 2011494771748 in words is "two trillion, eleven billion, four hundred ninety-four million, seven hundred seventy-one thousand, seven hundred forty-eight".