2635073978 has 16 divisors (see below), whose sum is σ = 4039870464. Its totient is φ = 1288743120.

The previous prime is 2635073963. The next prime is 2635073983. The reversal of 2635073978 is 8793705362.

It is a happy number.

It is a super-2 number, since 2×2635073978² = 13887229739065488968, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55025 + ... + 91092.

It is an arithmetic number, because the mean of its divisors is an integer number (252491904).

Almost surely, 2^2635073978 is an apocalyptic number.

2635073978 is a deficient number, since it is larger than the sum of its proper divisors (1404796486).

2635073978 is a wasteful number, since it uses less digits than its factorization.

2635073978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146317.

The product of its (nonzero) digits is 1905120, while the sum is 50.

The square root of 2635073978 is about 51332.9716459119. The cubic root of 2635073978 is about 1381.2244921806.

The spelling of 2635073978 in words is "two billion, six hundred thirty-five million, seventy-three thousand, nine hundred seventy-eight".