2623978238742 has 48 divisors (see below), whose sum is σ = 6531488151552. Its totient is φ = 745782888240.

The previous prime is 2623978238723. The next prime is 2623978238767. The reversal of 2623978238742 is 2478328793262.

2623978238742 is a `hidden beast` number, since 2 + 6 + 2 + 397 + 8 + 238 + 7 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 2623978238742.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54492228 + ... + 54540359.

It is an arithmetic number, because the mean of its divisors is an integer number (136072669824).

Almost surely, 2^{2623978238742} is an apocalyptic number.

2623978238742 is an abundant number, since it is smaller than the sum of its proper divisors (3907509912810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2623978238742 is a wasteful number, since it uses less digits than its factorization.

2623978238742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109032793 (or 109032790 counting only the distinct ones).

The product of its digits is 97542144, while the sum is 63.

The spelling of 2623978238742 in words is "two trillion, six hundred twenty-three billion, nine hundred seventy-eight million, two hundred thirty-eight thousand, seven hundred forty-two".