2650746891438 has 64 divisors (see below), whose sum is σ = 6150621600000. Its totient is φ = 845140861152.

The previous prime is 2650746891431. The next prime is 2650746891473. The reversal of 2650746891438 is 8341986470562.

2650746891438 is a `hidden beast` number, since 2 + 6 + 50 + 7 + 4 + 68 + 91 + 438 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2650746891431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7742188 + ... + 8077311.

It is an arithmetic number, because the mean of its divisors is an integer number (96103462500).

It is a 2-persistent number, because it is pandigital, and so is 2⋅2650746891438 = 5301493782876, but 3⋅2650746891438 = 7952240674314 is not.

Almost surely, 2^{2650746891438} is an apocalyptic number.

2650746891438 is an abundant number, since it is smaller than the sum of its proper divisors (3499874708562).

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

2650746891438 is a wasteful number, since it uses less digits than its factorization.

2650746891438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15819646 (or 15819640 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 63.

The spelling of 2650746891438 in words is "two trillion, six hundred fifty billion, seven hundred forty-six million, eight hundred ninety-one thousand, four hundred thirty-eight".