2535997002861 has 32 divisors (see below), whose sum is σ = 3989666725888. Its totient is φ = 1402172104320.

The previous prime is 2535997002853. The next prime is 2535997002953. The reversal of 2535997002861 is 1682007995352.

It is a happy number.

It is not a de Polignac number, because 2535997002861 - 2³ = 2535997002853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2535997002061) 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, 3839001 + ... + 4450833.

It is an arithmetic number, because the mean of its divisors is an integer number (124677085184).

Almost surely, 2^{2535997002861} is an apocalyptic number.

2535997002861 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2535997002861 is a deficient number, since it is larger than the sum of its proper divisors (1453669723027).

2535997002861 is a wasteful number, since it uses less digits than its factorization.

2535997002861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618241.

The product of its (nonzero) digits is 8164800, while the sum is 57.

The spelling of 2535997002861 in words is "two trillion, five hundred thirty-five billion, nine hundred ninety-seven million, two thousand, eight hundred sixty-one".