2495435821021 has 48 divisors (see below), whose sum is σ = 3133470674880. Its totient is φ = 1952449989120.

The previous prime is 2495435821009. The next prime is 2495435821027. The reversal of 2495435821021 is 1201285345942.

It is not a de Polignac number, because 2495435821021 - 2⁹ = 2495435820509 is a prime.

It is a super-3 number, since 3×2495435821021³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2495435821027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27787690 + ... + 27877348.

It is an arithmetic number, because the mean of its divisors is an integer number (65280639060).

Almost surely, 2^{2495435821021} is an apocalyptic number.

It is an amenable number.

2495435821021 is a deficient number, since it is larger than the sum of its proper divisors (638034853859).

2495435821021 is a wasteful number, since it uses less digits than its factorization.

2495435821021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89914 (or 89807 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 2495435821021 in words is "two trillion, four hundred ninety-five billion, four hundred thirty-five million, eight hundred twenty-one thousand, twenty-one".