2391994043070 has 16 divisors (see below), whose sum is σ = 5740785703440. Its totient is φ = 637865078144.

The previous prime is 2391994043059. The next prime is 2391994043071. The reversal of 2391994043070 is 703404991932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2391994043071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39866567355 + ... + 39866567414.

It is an arithmetic number, because the mean of its divisors is an integer number (358799106465).

Almost surely, 2^{2391994043070} is an apocalyptic number.

2391994043070 is an abundant number, since it is smaller than the sum of its proper divisors (3348791660370).

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

2391994043070 is a wasteful number, since it uses less digits than its factorization.

2391994043070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79733134779.

The product of its (nonzero) digits is 1469664, while the sum is 51.

The spelling of 2391994043070 in words is "two trillion, three hundred ninety-one billion, nine hundred ninety-four million, forty-three thousand, seventy".