2137356978402 has 8 divisors (see below), whose sum is σ = 4274713956816. Its totient is φ = 712452326132.

The previous prime is 2137356978349. The next prime is 2137356978403. The reversal of 2137356978402 is 2048796537312.

It is a sphenic number, since it is the product of 3 distinct primes.

2137356978402 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2137356978403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178113081528 + ... + 178113081539.

It is an arithmetic number, because the mean of its divisors is an integer number (534339244602).

It is a 2-persistent number, because it is pandigital, and so is 2⋅2137356978402 = 4274713956804, but 3⋅2137356978402 = 6412070935206 is not.

Almost surely, 2^{2137356978402} is an apocalyptic number.

2137356978402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2137356978402 is a wasteful number, since it uses less digits than its factorization.

2137356978402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356226163072.

The product of its (nonzero) digits is 15240960, while the sum is 57.

The spelling of 2137356978402 in words is "two trillion, one hundred thirty-seven billion, three hundred fifty-six million, nine hundred seventy-eight thousand, four hundred two".