2657923940155 has 12 divisors (see below), whose sum is σ = 3505823644176. Its totient is φ = 1933035592400.

The previous prime is 2657923940117. The next prime is 2657923940183. The reversal of 2657923940155 is 5510493297562.

It is a happy number.

It is not a de Polignac number, because 2657923940155 - 2¹³ = 2657923931963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2657923940155.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2196630751 + ... + 2196631960.

It is an arithmetic number, because the mean of its divisors is an integer number (292151970348).

Almost surely, 2^{2657923940155} is an apocalyptic number.

2657923940155 is a deficient number, since it is larger than the sum of its proper divisors (847899704021).

2657923940155 is a wasteful number, since it uses less digits than its factorization.

2657923940155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4393262738 (or 4393262727 counting only the distinct ones).

The product of its (nonzero) digits is 20412000, while the sum is 58.

The spelling of 2657923940155 in words is "two trillion, six hundred fifty-seven billion, nine hundred twenty-three million, nine hundred forty thousand, one hundred fifty-five".