2653721607 has 16 divisors (see below), whose sum is σ = 3817121760. Its totient is φ = 1633661952.

The previous prime is 2653721537. The next prime is 2653721617. The reversal of 2653721607 is 7061273562.

It is not a de Polignac number, because 2653721607 - 2¹⁰ = 2653720583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2653721617) 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, 488182 + ... + 493587.

It is an arithmetic number, because the mean of its divisors is an integer number (238570110).

Almost surely, 2^2653721607 is an apocalyptic number.

2653721607 is a deficient number, since it is larger than the sum of its proper divisors (1163400153).

2653721607 is a wasteful number, since it uses less digits than its factorization.

2653721607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981842.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 2653721607 is about 51514.2854652959. The cubic root of 2653721607 is about 1384.4750071818.

The spelling of 2653721607 in words is "two billion, six hundred fifty-three million, seven hundred twenty-one thousand, six hundred seven".