74698969146154 has 4 divisors (see below), whose sum is σ = 112048453719234. Its totient is φ = 37349484573076.

The previous prime is 74698969146107. The next prime is 74698969146163. The reversal of 74698969146154 is 45164196989647.

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., 47143535193225 + 27555433952929 = 6866115^2 + 5249327^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18674742286537 + ... + 18674742286540.

Almost surely, 2^{74698969146154} is an apocalyptic number.

74698969146154 is a deficient number, since it is larger than the sum of its proper divisors (37349484573080).

74698969146154 is a wasteful number, since it uses less digits than its factorization.

74698969146154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37349484573079.

The product of its digits is 2821754880, while the sum is 79.

The spelling of 74698969146154 in words is "seventy-four trillion, six hundred ninety-eight billion, nine hundred sixty-nine million, one hundred forty-six thousand, one hundred fifty-four".