88440087640378 has 4 divisors (see below), whose sum is σ = 132660131460570. Its totient is φ = 44220043820188.

The previous prime is 88440087640339. The next prime is 88440087640451. The reversal of 88440087640378 is 87304678004488.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 82199119375129 + 6240968265249 = 9066373^2 + 2498193^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22110021910093 + ... + 22110021910096.

Almost surely, 2^{88440087640378} is an apocalyptic number.

88440087640378 is a deficient number, since it is larger than the sum of its proper divisors (44220043820192).

88440087640378 is a wasteful number, since it uses less digits than its factorization.

88440087640378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44220043820191.

The product of its (nonzero) digits is 231211008, while the sum is 67.

The spelling of 88440087640378 in words is "eighty-eight trillion, four hundred forty billion, eighty-seven million, six hundred forty thousand, three hundred seventy-eight".