78152950 has 24 divisors (see below), whose sum is σ = 145602288. Its totient is φ = 31210080.

The previous prime is 78152933. The next prime is 78152969. The reversal of 78152950 is 5925187.

It is a super-2 number, since 2×78152950² = 12215767187405000, which contains 22 as substring.

It is a congruent number.

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, 49879 + ... + 51421.

It is an arithmetic number, because the mean of its divisors is an integer number (6066762).

Almost surely, 2^78152950 is an apocalyptic number.

78152950 is a deficient number, since it is larger than the sum of its proper divisors (67449338).

78152950 is a wasteful number, since it uses less digits than its factorization.

78152950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568 (or 2563 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 78152950 is about 8840.4157142071. The cubic root of 78152950 is about 427.5449606737.

The spelling of 78152950 in words is "seventy-eight million, one hundred fifty-two thousand, nine hundred fifty".