2670903921 has 32 divisors (see below), whose sum is σ = 4290674688. Its totient is φ = 1445555520.

The previous prime is 2670903901. The next prime is 2670903943. The reversal of 2670903921 is 1293090762.

2670903921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2670903921 - 2²⁶ = 2603795057 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2670903921.

It is not an unprimeable number, because it can be changed into a prime (2670903901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13050 + ... + 74243.

It is an arithmetic number, because the mean of its divisors is an integer number (134083584).

Almost surely, 2^2670903921 is an apocalyptic number.

2670903921 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2670903921 is a deficient number, since it is larger than the sum of its proper divisors (1619770767).

2670903921 is a wasteful number, since it uses less digits than its factorization.

2670903921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87381.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 2670903921 is about 51680.7887033470. The cubic root of 2670903921 is about 1387.4566470344.

The spelling of 2670903921 in words is "two billion, six hundred seventy million, nine hundred three thousand, nine hundred twenty-one".