2157787014 has 32 divisors (see below), whose sum is σ = 4420901376. Its totient is φ = 701801760.

The previous prime is 2157787013. The next prime is 2157787081. The reversal of 2157787014 is 4107877512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2157787013) 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, 81784 + ... + 104900.

It is an arithmetic number, because the mean of its divisors is an integer number (138153168).

Almost surely, 2^2157787014 is an apocalyptic number.

2157787014 is an abundant number, since it is smaller than the sum of its proper divisors (2263114362).

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

2157787014 is a wasteful number, since it uses less digits than its factorization.

2157787014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23500.

The product of its (nonzero) digits is 109760, while the sum is 42.

The square root of 2157787014 is about 46451.9861146970. The cubic root of 2157787014 is about 1292.2192063373.

The spelling of 2157787014 in words is "two billion, one hundred fifty-seven million, seven hundred eighty-seven thousand, fourteen".