2071892145 has 64 divisors (see below), whose sum is σ = 3643695360. Its totient is φ = 1001548800.

The previous prime is 2071892131. The next prime is 2071892149. The reversal of 2071892145 is 5412981702.

It is not a de Polignac number, because 2071892145 - 2⁴ = 2071892129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2071892149) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 641635 + ... + 644855.

It is an arithmetic number, because the mean of its divisors is an integer number (56932740).

Almost surely, 2^2071892145 is an apocalyptic number.

It is an amenable number.

2071892145 is a deficient number, since it is larger than the sum of its proper divisors (1571803215).

2071892145 is a wasteful number, since it uses less digits than its factorization.

2071892145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3346.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 2071892145 is about 45518.0419723872. The cubic root of 2071892145 is about 1274.8400968248.

The spelling of 2071892145 in words is "two billion, seventy-one million, eight hundred ninety-two thousand, one hundred forty-five".