2542072974938 has 16 divisors (see below), whose sum is σ = 4429279377024. Its totient is φ = 1071599848560.

The previous prime is 2542072974937. The next prime is 2542072974943. The reversal of 2542072974938 is 8394792702452.

It is a super-2 number, since 2×2542072974938² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2542072974937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1488332270 + ... + 1488333977.

It is an arithmetic number, because the mean of its divisors is an integer number (276829961064).

Almost surely, 2^{2542072974938} is an apocalyptic number.

2542072974938 is a deficient number, since it is larger than the sum of its proper divisors (1887206402086).

2542072974938 is a wasteful number, since it uses less digits than its factorization.

2542072974938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2976666317.

The product of its (nonzero) digits is 60963840, while the sum is 62.

The spelling of 2542072974938 in words is "two trillion, five hundred forty-two billion, seventy-two million, nine hundred seventy-four thousand, nine hundred thirty-eight".