2978735429642 has 32 divisors (see below), whose sum is σ = 5110183130112. Its totient is φ = 1275656304384.

The previous prime is 2978735429641. The next prime is 2978735429687. The reversal of 2978735429642 is 2469245378792.

It is not an unprimeable number, because it can be changed into a prime (2978735429641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212259458 + ... + 212273490.

It is an arithmetic number, because the mean of its divisors is an integer number (159693222816).

Almost surely, 2^{2978735429642} is an apocalyptic number.

2978735429642 is a deficient number, since it is larger than the sum of its proper divisors (2131447700470).

2978735429642 is a wasteful number, since it uses less digits than its factorization.

2978735429642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24182.

The product of its digits is 365783040, while the sum is 68.

The spelling of 2978735429642 in words is "two trillion, nine hundred seventy-eight billion, seven hundred thirty-five million, four hundred twenty-nine thousand, six hundred forty-two".