2542921461 has 12 divisors (see below), whose sum is σ = 3699535840. Its totient is φ = 1683083880.

The previous prime is 2542921453. The next prime is 2542921471. The reversal of 2542921461 is 1641292452.

It is a happy number.

It is not a de Polignac number, because 2542921461 - 2³ = 2542921453 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 (2542921471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1015105 + ... + 1017606.

Almost surely, 2^2542921461 is an apocalyptic number.

It is an amenable number.

2542921461 is a deficient number, since it is larger than the sum of its proper divisors (1156614379).

2542921461 is a wasteful number, since it uses less digits than its factorization.

2542921461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032856 (or 2032853 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 2542921461 is about 50427.3880049324. The cubic root of 2542921461 is about 1364.9318953261.

The spelling of 2542921461 in words is "two billion, five hundred forty-two million, nine hundred twenty-one thousand, four hundred sixty-one".